diff --git a/modelscope/models/nlp/__init__.py b/modelscope/models/nlp/__init__.py
index 1dd32621..ad343957 100644
--- a/modelscope/models/nlp/__init__.py
+++ b/modelscope/models/nlp/__init__.py
@@ -5,4 +5,6 @@ from .palm_for_text_generation import *  # noqa F403
 from .sbert_for_sentence_similarity import *  # noqa F403
 from .sbert_for_token_classification import *  # noqa F403
 from .sentiment_classification_model import *  # noqa F403
+from .space.dialog_intent_prediction_model import *  # noqa F403
+from .space.dialog_modeling_model import *  # noqa F403
 from .zero_shot_classification_model import *  # noqa F403
diff --git a/modelscope/models/nlp/space/__init__.py b/modelscope/models/nlp/space/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/modelscope/models/nlp/space/dialog_intent_prediction_model.py b/modelscope/models/nlp/space/dialog_intent_prediction_model.py
new file mode 100644
index 00000000..3ea500e5
--- /dev/null
+++ b/modelscope/models/nlp/space/dialog_intent_prediction_model.py
@@ -0,0 +1,81 @@
+import os
+from typing import Any, Dict
+
+from modelscope.preprocessors.space.fields.intent_field import \
+    IntentBPETextField
+from modelscope.trainers.nlp.space.trainers.intent_trainer import IntentTrainer
+from modelscope.utils.config import Config
+from modelscope.utils.constant import Tasks
+from ...base import Model, Tensor
+from ...builder import MODELS
+from .model.generator import Generator
+from .model.model_base import ModelBase
+
+__all__ = ['DialogIntentModel']
+
+
+@MODELS.register_module(
+    Tasks.dialog_intent_prediction, module_name=r'space-intent')
+class DialogIntentModel(Model):
+
+    def __init__(self, model_dir: str, *args, **kwargs):
+        """initialize the test generation model from the `model_dir` path.
+
+        Args:
+            model_dir (str): the model path.
+            model_cls (Optional[Any], optional): model loader, if None, use the
+                default loader to load model weights, by default None.
+        """
+
+        super().__init__(model_dir, *args, **kwargs)
+        self.model_dir = model_dir
+        self.config = kwargs.pop(
+            'config',
+            Config.from_file(
+                os.path.join(self.model_dir, 'configuration.json')))
+        self.text_field = kwargs.pop(
+            'text_field',
+            IntentBPETextField(self.model_dir, config=self.config))
+
+        self.generator = Generator.create(self.config, reader=self.text_field)
+        self.model = ModelBase.create(
+            model_dir=model_dir,
+            config=self.config,
+            reader=self.text_field,
+            generator=self.generator)
+
+        def to_tensor(array):
+            """
+            numpy array -> tensor
+            """
+            import torch
+            array = torch.tensor(array)
+            return array.cuda() if self.config.use_gpu else array
+
+        self.trainer = IntentTrainer(
+            model=self.model,
+            to_tensor=to_tensor,
+            config=self.config,
+            reader=self.text_field)
+        self.trainer.load()
+
+    def forward(self, input: Dict[str, Tensor]) -> Dict[str, Tensor]:
+        """return the result by the model
+
+        Args:
+            input (Dict[str, Any]): the preprocessed data
+
+        Returns:
+            Dict[str, np.ndarray]: results
+                Example:
+                    {
+                        'predictions': array([1]), # lable 0-negative 1-positive
+                        'probabilities': array([[0.11491239, 0.8850876 ]], dtype=float32),
+                        'logits': array([[-0.53860897,  1.5029076 ]], dtype=float32) # true value
+                    }
+        """
+        import numpy as np
+        pred = self.trainer.forward(input)
+        pred = np.squeeze(pred[0], 0)
+
+        return {'pred': pred}
diff --git a/modelscope/models/nlp/space/dialog_modeling_model.py b/modelscope/models/nlp/space/dialog_modeling_model.py
new file mode 100644
index 00000000..bae8a822
--- /dev/null
+++ b/modelscope/models/nlp/space/dialog_modeling_model.py
@@ -0,0 +1,82 @@
+import os
+from typing import Any, Dict, Optional
+
+from modelscope.preprocessors.space.fields.gen_field import \
+    MultiWOZBPETextField
+from modelscope.trainers.nlp.space.trainers.gen_trainer import MultiWOZTrainer
+from modelscope.utils.config import Config
+from modelscope.utils.constant import Tasks
+from ...base import Model, Tensor
+from ...builder import MODELS
+from .model.generator import Generator
+from .model.model_base import ModelBase
+
+__all__ = ['DialogModelingModel']
+
+
+@MODELS.register_module(Tasks.dialog_modeling, module_name=r'space-modeling')
+class DialogModelingModel(Model):
+
+    def __init__(self, model_dir: str, *args, **kwargs):
+        """initialize the test generation model from the `model_dir` path.
+
+        Args:
+            model_dir (str): the model path.
+            model_cls (Optional[Any], optional): model loader, if None, use the
+                default loader to load model weights, by default None.
+        """
+
+        super().__init__(model_dir, *args, **kwargs)
+        self.model_dir = model_dir
+        self.config = kwargs.pop(
+            'config',
+            Config.from_file(
+                os.path.join(self.model_dir, 'configuration.json')))
+        self.text_field = kwargs.pop(
+            'text_field',
+            MultiWOZBPETextField(self.model_dir, config=self.config))
+        self.generator = Generator.create(self.config, reader=self.text_field)
+        self.model = ModelBase.create(
+            model_dir=model_dir,
+            config=self.config,
+            reader=self.text_field,
+            generator=self.generator)
+
+        def to_tensor(array):
+            """
+            numpy array -> tensor
+            """
+            import torch
+            array = torch.tensor(array)
+            return array.cuda() if self.config.use_gpu else array
+
+        self.trainer = MultiWOZTrainer(
+            model=self.model,
+            to_tensor=to_tensor,
+            config=self.config,
+            reader=self.text_field,
+            evaluator=None)
+        self.trainer.load()
+
+    def forward(self, input: Dict[str, Tensor]) -> Dict[str, Tensor]:
+        """return the result by the model
+
+        Args:
+            input (Dict[str, Any]): the preprocessed data
+
+        Returns:
+            Dict[str, np.ndarray]: results
+                Example:
+                    {
+                        'predictions': array([1]), # lable 0-negative 1-positive
+                        'probabilities': array([[0.11491239, 0.8850876 ]], dtype=float32),
+                        'logits': array([[-0.53860897,  1.5029076 ]], dtype=float32) # true value
+                    }
+        """
+
+        turn = {'user': input['user']}
+        old_pv_turn = input['history']
+
+        pv_turn = self.trainer.forward(turn=turn, old_pv_turn=old_pv_turn)
+
+        return pv_turn
diff --git a/modelscope/models/nlp/space/model/__init__.py b/modelscope/models/nlp/space/model/__init__.py
new file mode 100644
index 00000000..7e1b5264
--- /dev/null
+++ b/modelscope/models/nlp/space/model/__init__.py
@@ -0,0 +1,3 @@
+from .gen_unified_transformer import GenUnifiedTransformer
+from .intent_unified_transformer import IntentUnifiedTransformer
+from .unified_transformer import UnifiedTransformer
diff --git a/modelscope/models/nlp/space/model/gen_unified_transformer.py b/modelscope/models/nlp/space/model/gen_unified_transformer.py
new file mode 100644
index 00000000..c076cce4
--- /dev/null
+++ b/modelscope/models/nlp/space/model/gen_unified_transformer.py
@@ -0,0 +1,285 @@
+"""
+IntentUnifiedTransformer
+"""
+import torch
+
+from modelscope.models.nlp.space.model.unified_transformer import \
+    UnifiedTransformer
+
+
+class GenUnifiedTransformer(UnifiedTransformer):
+    """
+    Implement generation unified transformer.
+    """
+
+    def __init__(self, model_dir, config, reader, generator):
+        super(GenUnifiedTransformer, self).__init__(model_dir, config, reader,
+                                                    generator)
+        self.understand = config.BPETextField.understand
+
+        if self.use_gpu:
+            self.cuda()
+        return
+
+    def _forward(self, inputs, is_training, with_label):
+        """ Real forward process of model in different mode(train/test). """
+
+        def cat(x, y, dim=1):
+            return torch.cat([x, y], dim=dim)
+
+        outputs = {}
+
+        if self.understand or self.policy:
+            if self.understand:
+                prompt_token = inputs['understand_token']
+                prompt_mask = inputs['understand_mask']
+                if self.policy:
+                    prompt_token = cat(prompt_token, inputs['policy_token'])
+                    prompt_mask = cat(prompt_mask, inputs['policy_mask'])
+            else:
+                prompt_token = inputs['policy_token']
+                prompt_mask = inputs['policy_mask']
+
+            enc_embed, dec_embed, prompt_embed = self._encoder_prompt_decoder_network(
+                src_token=inputs['src_token'],
+                src_mask=inputs['src_mask'],
+                tgt_token=inputs['tgt_token'][:, :-1],
+                tgt_mask=inputs['tgt_mask'][:, :-1],
+                prompt_token=prompt_token,
+                prompt_mask=prompt_mask,
+                src_pos=inputs['src_pos'],
+                src_type=inputs['src_type'],
+                src_turn=inputs['src_turn'],
+                tgt_pos=inputs['tgt_pos'][:, :-1],
+                tgt_type=inputs['tgt_type'][:, :-1],
+                tgt_turn=inputs['tgt_turn'][:, :-1])
+        else:
+            enc_embed, dec_embed = self._encoder_decoder_network(
+                src_token=inputs['src_token'],
+                src_mask=inputs['src_mask'],
+                tgt_token=inputs['tgt_token'][:, :-1],
+                tgt_mask=inputs['tgt_mask'][:, :-1],
+                src_pos=inputs['src_pos'],
+                src_type=inputs['src_type'],
+                src_turn=inputs['src_turn'],
+                tgt_pos=inputs['tgt_pos'][:, :-1],
+                tgt_type=inputs['tgt_type'][:, :-1],
+                tgt_turn=inputs['tgt_turn'][:, :-1])
+
+        outputs['dec_probs'] = self._dec_head(dec_embed=dec_embed)
+        return outputs
+
+    def _collect_metrics(self, inputs, outputs, with_label, data_file):
+
+        metrics = {}
+        loss = 0.
+
+        label = inputs['tgt_token'][:, 1:]
+        token_num = torch.sum(torch.sum(inputs['tgt_mask'], dim=1) - 1)
+        nll = self.nll_loss(
+            torch.log(outputs['dec_probs'] + 1e-12).permute(0, 2, 1), label)
+        nll = torch.sum(nll, dim=1)
+        token_nll = torch.sum(nll) / token_num
+        nll = torch.mean(nll)
+        metrics['nll'] = nll
+        metrics['token_nll'] = token_nll
+        metrics['token_num'] = token_num
+        loss = loss + (token_nll if self.token_loss else nll)
+
+        metrics['loss'] = loss
+        if self.gpu > 1:
+            return nll, token_nll, token_num
+        else:
+            return metrics
+
+    def _optimize(self, loss, do_update=False, optimizer=None):
+        """ Optimize loss function and update model. """
+        assert optimizer is not None
+
+        if self.gradient_accumulation_steps > 1:
+            loss = loss / self.gradient_accumulation_steps
+
+        loss.backward()
+
+        if self.grad_clip is not None and self.grad_clip > 0:
+            torch.nn.utils.clip_grad_norm_(
+                parameters=self.parameters(), max_norm=self.grad_clip)
+
+        if do_update:
+            optimizer.step()
+            optimizer.zero_grad()
+
+        return
+
+    def _init_state(self,
+                    src_token,
+                    src_mask,
+                    src_pos=None,
+                    src_type=None,
+                    src_turn=None):
+        """ Initialize decode state. """
+        state = {}
+        batch_size = src_token.shape[0]
+
+        src_embed = self.embedder(src_token, src_pos, src_type, src_turn)
+        src_embed = self.embed_layer_norm(src_embed)
+
+        mask = self._create_mask(src_mask, append_head=False)
+
+        enc_out = src_embed
+
+        cache = {}
+        for _l, layer in enumerate(self.layers):
+            cache[f'layer_{_l}'] = {}
+            enc_out = layer(enc_out, mask, cache[f'layer_{_l}'])
+
+        state['cache'] = cache
+        state['mask'] = mask[:, :1]
+        state['batch_size'] = batch_size
+        shape = [batch_size, 1, 1]
+        state['pred_mask'] = torch.ones(shape, dtype=torch.float32)
+        state['pred_pos'] = torch.zeros(shape, dtype=torch.int64)
+        state['pred_type'] = torch.zeros(shape, dtype=torch.int64)
+        state['pred_turn'] = torch.zeros(shape, dtype=torch.int64)
+        if self.use_gpu:
+            state['pred_mask'] = state['pred_mask'].cuda()
+            state['pred_pos'] = state['pred_pos'].cuda()
+            state['pred_type'] = state['pred_type'].cuda()
+            state['pred_turn'] = state['pred_turn'].cuda()
+
+        return state
+
+    def _init_prompt_state(self,
+                           src_token,
+                           src_mask,
+                           prompt_token,
+                           prompt_mask,
+                           src_pos=None,
+                           src_type=None,
+                           src_turn=None,
+                           prompt_pos=None,
+                           prompt_type=None,
+                           prompt_turn=None):
+        """ Initialize decode state. """
+        state = {}
+        batch_size = src_token.shape[0]
+
+        src_embed = self.embedder(src_token, src_pos, src_type, src_turn)
+        prompt_embed = self.embedder(prompt_token, prompt_pos, prompt_type,
+                                     prompt_turn)
+        embed = torch.cat([src_embed, prompt_embed], dim=1)
+        embed = self.embed_layer_norm(embed)
+        enc_out = embed
+
+        enc_mask = self._create_mask(src_mask, auto_regressive=False)
+        dec_mask = self._create_mask(prompt_mask, auto_regressive=True)
+        mask = self._join_mask(enc_mask, dec_mask)
+
+        cache = {}
+        for _l, layer in enumerate(self.layers):
+            cache[f'layer_{_l}'] = {}
+            enc_out = layer(enc_out, mask, cache[f'layer_{_l}'])
+
+        state['cache'] = cache
+        state['mask'] = mask[:, -1:]  # state["mask"] = mask[:, :1]
+        state['batch_size'] = batch_size
+        shape = [batch_size, 1, 1]
+        state['pred_mask'] = torch.ones(shape, dtype=torch.float32)
+        state['pred_pos'] = torch.zeros(shape, dtype=torch.int64)
+        state['pred_type'] = torch.zeros(shape, dtype=torch.int64)
+        state['pred_turn'] = torch.zeros(shape, dtype=torch.int64)
+        if self.use_gpu:
+            state['pred_mask'] = state['pred_mask'].cuda()
+            state['pred_pos'] = state['pred_pos'].cuda()
+            state['pred_type'] = state['pred_type'].cuda()
+            state['pred_turn'] = state['pred_turn'].cuda()
+
+        return state
+
+    def _decode(self, state):
+        """ Decoding one time stamp. """
+
+        # shape: [batch_size, 1, seq_len]
+        mask = state['mask']
+
+        # shape: [batch_size, 1, 1]
+        pred_token = state['pred_token']
+        pred_mask = state['pred_mask']
+        pred_pos = state['pred_pos']
+        pred_type = state['pred_type']
+        pred_turn = state['pred_turn']
+
+        # list of shape(len: num_layers): [batch_size, seq_len, hidden_dim]
+        cache = state['cache']
+
+        pred_embed = self.embedder(pred_token, pred_pos, pred_type,
+                                   pred_turn).squeeze(-2)
+        pred_embed = self.embed_layer_norm(pred_embed)
+
+        # shape: [batch_size, 1, seq_len + 1]
+        mask = torch.cat([mask, 1 - pred_mask], dim=2)
+
+        # shape: [batch_size, 1, hidden_dim]
+        for _l, layer in enumerate(self.layers):
+            pred_embed = layer(pred_embed, mask, cache[f'layer_{_l}'])
+
+        # shape: [batch_size, vocab_size]
+        pred_probs = self._dec_head(dec_embed=pred_embed[:, 0])
+        pred_logits = torch.log(pred_probs)
+
+        state['mask'] = mask
+        return pred_logits, state
+
+    def _infer(self,
+               inputs,
+               start_id=None,
+               eos_id=None,
+               max_gen_len=None,
+               prev_input=None):
+        """ Real inference process of model. """
+
+        def cat(x, y, dim=1):
+            return torch.cat([x, y], dim=dim)
+
+        # Initial decode state.
+        if self.understand or self.policy:
+            if self.understand:
+                prompt_token = inputs['understand_token']
+                prompt_mask = inputs['understand_mask']
+                if self.policy:
+                    prompt_token = cat(prompt_token, inputs['policy_token'])
+                    prompt_mask = cat(prompt_mask, inputs['policy_mask'])
+            else:
+                prompt_token = inputs['policy_token']
+                prompt_mask = inputs['policy_mask']
+
+            state = self._init_prompt_state(
+                src_token=inputs['src_token'],
+                src_mask=inputs['src_mask'],
+                prompt_token=prompt_token,
+                prompt_mask=prompt_mask,
+                src_pos=inputs['src_pos'],
+                src_type=inputs['src_type'],
+                src_turn=inputs['src_turn'])
+        else:
+            state = self._init_state(
+                src_token=inputs['src_token'],
+                src_mask=inputs['src_mask'],
+                src_pos=inputs['src_pos'],
+                src_type=inputs['src_type'],
+                src_turn=inputs['src_turn'])
+
+        # Generation process.
+        gen_results = self.generator(
+            step_fn=self._decode,
+            state=state,
+            start_id=start_id,
+            eos_id=eos_id,
+            max_gen_len=max_gen_len,
+            prev_input=prev_input)
+
+        outputs = gen_results['preds']
+        return outputs
+
+
+GenUnifiedTransformer.register('GenUnifiedTransformer')
diff --git a/modelscope/models/nlp/space/model/generator.py b/modelscope/models/nlp/space/model/generator.py
new file mode 100644
index 00000000..bdf6b135
--- /dev/null
+++ b/modelscope/models/nlp/space/model/generator.py
@@ -0,0 +1,290 @@
+"""
+Generator class.
+"""
+
+import math
+
+import numpy as np
+import torch
+
+
+def repeat(var, times):
+    if isinstance(var, list):
+        return [repeat(x, times) for x in var]
+    elif isinstance(var, dict):
+        return {k: repeat(v, times) for k, v in var.items()}
+    elif isinstance(var, torch.Tensor):
+        var = var.unsqueeze(1)
+        expand_times = [1] * len(var.shape)
+        expand_times[1] = times
+        dtype = var.dtype
+        var = var.float()
+        var = var.repeat(*expand_times)
+        shape = [var.shape[0] * var.shape[1]] + list(var.shape[2:])
+        var = var.reshape(*shape)
+        var = torch.tensor(var, dtype=dtype)
+        return var
+    else:
+        return var
+
+
+def gather(var, idx):
+    if isinstance(var, list):
+        return [gather(x, idx) for x in var]
+    elif isinstance(var, dict):
+        return {k: gather(v, idx) for k, v in var.items()}
+    elif isinstance(var, torch.Tensor):
+        out = var.index_select(dim=0, index=idx)
+        return out
+    else:
+        return var
+
+
+class Generator(object):
+    """ Genrator class. """
+
+    _registry = dict()
+
+    @classmethod
+    def register(cls, name):
+        Generator._registry[name] = cls
+        return
+
+    @staticmethod
+    def by_name(name):
+        return Generator._registry[name]
+
+    @staticmethod
+    def create(config, *args, **kwargs):
+        """ Create generator. """
+        generator_cls = Generator.by_name(config.Generator.generator)
+        return generator_cls(config, *args, **kwargs)
+
+    def __init__(self, config, reader):
+        self.vocab_size = reader.vocab_size
+        self.bos_id = reader.bos_id
+        self.eos_id = reader.eos_id
+        self.unk_id = reader.unk_id
+        self.pad_id = reader.pad_id
+        self.min_gen_len = config.Generator.min_gen_len
+        self.max_gen_len = config.Generator.max_gen_len
+        self.use_gpu = config.use_gpu
+        assert 1 <= self.min_gen_len <= self.max_gen_len
+        return
+
+    def __call__(self, step_fn, state):
+        """
+        Running generation.
+
+        @param : step_fn : decoding one step
+        @type : function
+
+        @param : state : initial state
+        @type : dict
+        """
+        raise NotImplementedError
+
+
+class BeamSearch(Generator):
+    """ BeamSearch generator. """
+
+    def __init__(self, config, reader):
+        super().__init__(config, reader)
+        self.beam_size = config.Generator.beam_size
+        self.length_average = config.Generator.length_average
+        self.length_penalty = config.Generator.length_penalty
+        self.ignore_unk = config.Generator.ignore_unk
+        return
+
+    def __call__(self,
+                 step_fn,
+                 state,
+                 start_id=None,
+                 eos_id=None,
+                 max_gen_len=None,
+                 prev_input=None):
+        """
+        Running beam search.
+
+        @param : step_fn : decoding one step
+        @type : function
+
+        @param : state : initial state
+        @type : dict
+        """
+        if prev_input is not None:
+
+            if isinstance(prev_input, list):
+                length = max(list(map(lambda x: len(x), prev_input)))
+                prev_input_numpy = np.full((len(prev_input), length),
+                                           self.pad_id)
+                for i, x in enumerate(prev_input):
+                    prev_input_numpy[i, :len(x)] = x
+                prev_input_tensor = torch.from_numpy(prev_input_numpy)
+                if self.use_gpu:
+                    prev_input_tensor = prev_input_tensor.cuda()
+
+                for i in range(length):
+                    state['pred_token'] = prev_input_tensor[:, i].unsqueeze(
+                        -1).unsqueeze(-1)
+                    if i != 0:
+                        state['pred_mask'] = torch.not_equal(
+                            state['pred_token'], self.pad_id).float()
+                        state['pred_pos'] = state['pred_pos'] + state[
+                            'pred_mask'].int()
+                    _, state = step_fn(state)
+            else:
+                assert isinstance(prev_input, torch.Tensor)
+                for i, input in enumerate(prev_input):
+                    state['pred_token'] = input.expand(1, 1, 1)
+                    if i != 0:
+                        state['pred_mask'] = torch.not_equal(
+                            state['pred_token'], self.pad_id).float()
+                        state['pred_pos'] = state['pred_pos'] + 1
+                    _, state = step_fn(state)
+
+        batch_size = state['batch_size']
+        beam_size = self.beam_size
+
+        # shape: [batch_size, 1]
+        pos_index = torch.arange(
+            0, batch_size, 1, dtype=torch.int64) * beam_size
+        pos_index = pos_index.unsqueeze(1)
+
+        # shape: [batch_size, beam_size, 1]
+        if start_id is None:
+            start_id = self.bos_id
+        if eos_id is None:
+            eos_id = self.eos_id
+        predictions = torch.ones([batch_size, beam_size, 1],
+                                 dtype=torch.int64) * start_id
+
+        if self.use_gpu:
+            pos_index = pos_index.cuda()
+            predictions = predictions.cuda()
+
+        # initial input (start_id)
+        state['pred_token'] = predictions[:, :1]
+        if prev_input is not None:
+            state['pred_mask'] = torch.not_equal(state['pred_token'],
+                                                 self.pad_id).float()
+            state['pred_pos'] = state['pred_pos'] + 1
+
+        # shape: [batch_size, vocab_size]
+        scores, state = step_fn(state)
+
+        unk_penalty = np.zeros(self.vocab_size, dtype='float32')
+        unk_penalty[self.unk_id] = -1e10
+        unk_penalty = torch.from_numpy(unk_penalty)
+
+        eos_penalty = np.zeros(self.vocab_size, dtype='float32')
+        eos_penalty[eos_id] = -1e10
+        eos_penalty = torch.from_numpy(eos_penalty)
+
+        scores_after_end = np.full(self.vocab_size, -1e10, dtype='float32')
+        scores_after_end[
+            self.pad_id] = 0  # 希望<eos>之后只生成<pad>，故使词表中log(p(<pad>))最高(0)
+        scores_after_end = torch.from_numpy(scores_after_end)
+
+        if self.use_gpu:
+            unk_penalty = unk_penalty.cuda()
+            eos_penalty = eos_penalty.cuda()
+            scores_after_end = scores_after_end.cuda()
+
+        if self.ignore_unk:
+            scores = scores + unk_penalty
+        scores = scores + eos_penalty
+
+        # shape: [batch_size, beam_size]
+        sequence_scores, preds = torch.topk(scores, self.beam_size)
+
+        predictions = torch.cat([predictions, preds.unsqueeze(2)], dim=2)
+        state = repeat(state, beam_size)
+
+        if max_gen_len is None:
+            max_gen_len = self.max_gen_len
+        for step in range(2, max_gen_len + 1):
+            pre_ids = predictions[:, :, -1:]
+            state['pred_token'] = pre_ids.reshape(batch_size * beam_size, 1, 1)
+            state['pred_mask'] = torch.not_equal(state['pred_token'],
+                                                 self.pad_id).float()
+            state['pred_pos'] = state['pred_pos'] + 1
+            scores, state = step_fn(state)
+
+            # Generate next
+            # scores shape: [batch_size * beam_size, vocab_size]
+            if self.ignore_unk:
+                scores = scores + unk_penalty
+
+            if step <= self.min_gen_len:
+                scores = scores + eos_penalty
+
+            # scores shape: [batch_size, beam_size, vocab_size]
+            scores = scores.reshape(batch_size, beam_size, self.vocab_size)
+
+            # previous token is [PAD] or [EOS]
+            pre_eos_mask = (1 - torch.not_equal(pre_ids, eos_id).float()) + \
+                           (1 - torch.not_equal(pre_ids, self.pad_id).float())
+
+            scores = scores * (1 - pre_eos_mask) + pre_eos_mask.repeat(
+                1, 1, self.vocab_size) * scores_after_end
+            if self.length_average:
+                scaled_value = \
+                    pre_eos_mask + (1 - pre_eos_mask) * (1 - 1 / step)
+                sequence_scores = sequence_scores.unsqueeze(2) * scaled_value
+                scaled_value = pre_eos_mask + (1 - pre_eos_mask) * (1 / step)
+                scores = scores * scaled_value
+            elif self.length_penalty >= 0.0:
+                scaled_value = pre_eos_mask + (1 - pre_eos_mask) * \
+                    (math.pow((4 + step) / (5 + step), self.length_penalty))
+                sequence_scores = scaled_value * sequence_scores
+                scaled_value = pre_eos_mask + (1 - pre_eos_mask) * \
+                    (math.pow(1 / (5 + step), self.length_penalty))
+                scores = scores * scaled_value
+            scores = scores + sequence_scores.unsqueeze(-1)
+            scores = scores.reshape(batch_size, beam_size * self.vocab_size)
+
+            topk_scores, topk_indices = torch.topk(scores, beam_size)
+            # topk_indices: [batch_size, beam_size * self.vocab_size] (已reshape)
+            # 判断当前时间步产生词的前一个词在哪个beam中，对vocab_size取商
+            parent_idx = topk_indices.floor_divide(self.vocab_size)
+            # 对vocab_size取余
+            preds = topk_indices % self.vocab_size
+
+            # Gather state / sequence_scores
+            parent_idx = parent_idx + pos_index
+            parent_idx = parent_idx.reshape(batch_size * beam_size)
+            state = gather(state, parent_idx)
+            sequence_scores = topk_scores
+
+            predictions = predictions.reshape(batch_size * beam_size, step)
+            predictions = gather(predictions, parent_idx)
+            predictions = predictions.reshape(batch_size, beam_size, step)
+            predictions = torch.cat([predictions, preds.unsqueeze(2)], dim=2)
+
+        # 希望生成的整个句子已完结，所以要求最后一个token为<eos>或者<pad>(跟在<eos>之后)，否则惩罚
+        pre_ids = predictions[:, :, -1]
+        pre_eos_mask = (1 - torch.not_equal(pre_ids, eos_id).float()) + \
+                       (1 - torch.not_equal(pre_ids, self.pad_id).float())
+        sequence_scores = sequence_scores * pre_eos_mask + (
+            1 - pre_eos_mask) * (-1e10)
+
+        # 先获得ascending排序的index，便于之后对predictions和sequence_scores排序(针对beam size轴)
+        indices = torch.argsort(sequence_scores, dim=1)
+        indices = indices + pos_index
+        indices = indices.reshape(-1)
+        sequence_scores = sequence_scores.reshape(batch_size * beam_size)
+        predictions = predictions.reshape(batch_size * beam_size, -1)
+        sequence_scores = gather(sequence_scores, indices)
+        predictions = gather(predictions, indices)
+        sequence_scores = sequence_scores.reshape(batch_size, beam_size)
+        predictions = predictions.reshape(batch_size, beam_size, -1)
+
+        results = {
+            'preds': predictions[:, -1],
+            'scores': sequence_scores[:, -1]
+        }
+        return results
+
+
+BeamSearch.register('BeamSearch')
diff --git a/modelscope/models/nlp/space/model/intent_unified_transformer.py b/modelscope/models/nlp/space/model/intent_unified_transformer.py
new file mode 100644
index 00000000..646a8044
--- /dev/null
+++ b/modelscope/models/nlp/space/model/intent_unified_transformer.py
@@ -0,0 +1,198 @@
+"""
+IntentUnifiedTransformer
+"""
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+
+from modelscope.utils.nlp.space.criterions import compute_kl_loss
+from .unified_transformer import UnifiedTransformer
+
+
+class IntentUnifiedTransformer(UnifiedTransformer):
+    """
+    Implement intent unified transformer.
+    """
+
+    def __init__(self, model_dir, config, reader, generator):
+        super(IntentUnifiedTransformer, self).__init__(model_dir, config,
+                                                       reader, generator)
+        self.example = config.Model.example
+        self.num_intent = config.Model.num_intent
+        self.with_rdrop = config.Model.with_rdrop
+        self.kl_ratio = config.Model.kl_ratio
+        self.loss_fct = nn.CrossEntropyLoss()
+        if self.example:
+            self.loss_fct = nn.NLLLoss()
+        else:
+            self.intent_classifier = nn.Linear(self.hidden_dim,
+                                               self.num_intent)
+            self.loss_fct = nn.CrossEntropyLoss()
+
+        if self.use_gpu:
+            self.cuda()
+        return
+
+    def _forward(self, inputs, is_training, with_label):
+        """ Real forward process of model in different mode(train/test). """
+
+        def aug(v):
+            assert isinstance(v, torch.Tensor)
+            return torch.cat([v, v], dim=0)
+
+        outputs = {}
+
+        if self.with_mlm:
+            mlm_embed = self._encoder_network(
+                input_token=inputs['mlm_token'],
+                input_mask=inputs['src_mask'],
+                input_pos=inputs['src_pos'],
+                input_type=inputs['src_type'],
+                input_turn=inputs['src_turn'])
+            outputs['mlm_probs'] = self._mlm_head(mlm_embed=mlm_embed)
+
+        if self.with_rdrop or self.with_contrastive:
+            enc_embed, dec_embed = self._encoder_decoder_network(
+                src_token=aug(inputs['src_token']),
+                src_mask=aug(inputs['src_mask']),
+                tgt_token=aug(inputs['tgt_token']),
+                tgt_mask=aug(inputs['tgt_mask']),
+                src_pos=aug(inputs['src_pos']),
+                src_type=aug(inputs['src_type']),
+                src_turn=aug(inputs['src_turn']))
+        else:
+            enc_embed, dec_embed = self._encoder_decoder_network(
+                src_token=inputs['src_token'],
+                src_mask=inputs['src_mask'],
+                tgt_token=inputs['tgt_token'],
+                tgt_mask=inputs['tgt_mask'],
+                src_pos=inputs['src_pos'],
+                src_type=inputs['src_type'],
+                src_turn=inputs['src_turn'])
+        features = dec_embed[:, -1]
+        features = self.pooler(features) if self.with_pool else features
+
+        if self.example:
+            assert not self.with_rdrop
+            ex_enc_embed, ex_dec_embed = self._encoder_decoder_network(
+                src_token=inputs['example_src_token'],
+                src_mask=inputs['example_src_mask'],
+                tgt_token=inputs['example_tgt_token'],
+                tgt_mask=inputs['example_tgt_mask'],
+                src_pos=inputs['example_src_pos'],
+                src_type=inputs['example_src_type'],
+                src_turn=inputs['example_src_turn'])
+            ex_features = ex_dec_embed[:, -1]
+            ex_features = self.pooler(
+                ex_features) if self.with_pool else ex_features
+
+            probs = self.softmax(features.mm(ex_features.t()))
+            example_intent = inputs['example_intent'].unsqueeze(0)
+            intent_probs = torch.zeros(probs.size(0), self.num_intent)
+            intent_probs = intent_probs.cuda(
+            ) if self.use_gpu else intent_probs
+            intent_probs = intent_probs.scatter_add(
+                -1, example_intent.repeat(probs.size(0), 1), probs)
+            outputs['intent_probs'] = intent_probs
+        else:
+            intent_logits = self.intent_classifier(features)
+            outputs['intent_logits'] = intent_logits
+
+        if self.with_contrastive:
+            features = features if self.with_pool else self.pooler(features)
+            batch_size = features.size(0) // 2
+            features = \
+                torch.cat(
+                    [features[:batch_size].unsqueeze(1), features[batch_size:].unsqueeze(1)],
+                    dim=1
+                )
+            features = F.normalize(features, dim=-1, p=2)
+            outputs['features'] = features
+
+        return outputs
+
+    def _collect_metrics(self, inputs, outputs, with_label, data_file):
+
+        metrics = {}
+        batch_size = inputs['src_token'].size(0)
+
+        intent_label = torch.cat([inputs['intent_label'], inputs['intent_label']], dim=0) \
+            if self.with_rdrop or self.with_contrastive else inputs['intent_label']
+
+        if self.example:
+            intent_loss = self.loss_fct(
+                torch.log(outputs['intent_probs'] + 1e-12).view(
+                    -1, self.num_intent), intent_label.type(torch.long))
+        else:
+            intent_loss = self.loss_fct(
+                outputs['intent_logits'].view(-1, self.num_intent),
+                intent_label.type(torch.long))
+        metrics['intent_loss'] = intent_loss
+        loss = intent_loss
+
+        if self.with_mlm:
+            mlm_num = torch.sum(torch.sum(inputs['mlm_mask'], dim=1))
+            mlm = self.nll_loss(
+                torch.log(outputs['mlm_probs'] + 1e-12).permute(0, 2, 1),
+                inputs['mlm_label'])
+            mlm = torch.sum(mlm, dim=1)
+            token_mlm = torch.sum(mlm) / mlm_num
+            mlm = torch.mean(mlm)
+            metrics['mlm'] = mlm
+            metrics['token_mlm'] = token_mlm
+            metrics['mlm_num'] = mlm_num
+            loss = loss + (token_mlm
+                           if self.token_loss else mlm) * self.mlm_ratio
+        else:
+            mlm, token_mlm, mlm_num = None, None, None
+
+        if self.with_rdrop:
+            kl = compute_kl_loss(
+                p=outputs['intent_logits'][:batch_size],
+                q=outputs['intent_logits'][batch_size:])
+            metrics['kl'] = kl
+            loss = loss + kl * self.kl_ratio
+        else:
+            kl = None
+
+        if self.with_contrastive:
+            pass
+            con = None
+        else:
+            con = None
+
+        metrics['loss'] = loss
+
+        if self.gpu > 1:
+            return intent_loss, mlm, token_mlm, mlm_num, kl, con
+        else:
+            return metrics
+
+    def _infer(self,
+               inputs,
+               start_id=None,
+               eos_id=None,
+               max_gen_len=None,
+               prev_input=None):
+        """ Real inference process of model. """
+        results = {}
+        enc_embed, dec_embed = self._encoder_decoder_network(
+            src_token=inputs['src_token'],
+            src_mask=inputs['src_mask'],
+            tgt_token=inputs['tgt_token'],
+            tgt_mask=inputs['tgt_mask'],
+            src_pos=inputs['src_pos'],
+            src_type=inputs['src_type'],
+            src_turn=inputs['src_turn'])
+        features = dec_embed[:, -1]
+        features = self.pooler(features) if self.with_pool else features
+        if self.example:
+            results['features'] = features
+        else:
+            intent_logits = self.intent_classifier(features)
+            intent_probs = self.softmax(intent_logits)
+            results['intent_probs'] = intent_probs
+        return results
+
+
+IntentUnifiedTransformer.register('IntentUnifiedTransformer')
diff --git a/modelscope/models/nlp/space/model/model_base.py b/modelscope/models/nlp/space/model/model_base.py
new file mode 100644
index 00000000..cdd355a5
--- /dev/null
+++ b/modelscope/models/nlp/space/model/model_base.py
@@ -0,0 +1,99 @@
+"""
+Model base
+"""
+import os
+
+import torch.nn as nn
+
+
+class ModelBase(nn.Module):
+    """
+    Basic model wrapper for static graph and dygrpah.
+    """
+    _registry = dict()
+
+    @classmethod
+    def register(cls, name):
+        ModelBase._registry[name] = cls
+        return
+
+    @staticmethod
+    def by_name(name):
+        return ModelBase._registry[name]
+
+    @staticmethod
+    def create(model_dir, config, *args, **kwargs):
+        model_cls = ModelBase.by_name(config.Model.model)
+        return model_cls(model_dir, config, *args, **kwargs)
+
+    def __init__(self, model_dir, config):
+        super(ModelBase, self).__init__()
+        self.init_checkpoint = os.path.join(model_dir, 'pytorch_model.bin')
+        self.abandon_label = config.Dataset.abandon_label
+        self.use_gpu = config.use_gpu
+        self.gpu = config.Trainer.gpu
+        return
+
+    def _create_parameters(self):
+        """ Create model's paramters. """
+        raise NotImplementedError
+
+    def _forward(self, inputs, is_training, with_label):
+        """ NO LABEL: Real forward process of model in different mode(train/test). """
+        raise NotImplementedError
+
+    def _collect_metrics(self, inputs, outputs, with_label, data_file):
+        """ NO LABEL: Calculate loss function by using inputs and outputs. """
+        raise NotImplementedError
+
+    def _optimize(self, loss, optimizer, lr_scheduler):
+        """ Optimize loss function and update model. """
+        raise NotImplementedError
+
+    def _infer(self, inputs, start_id, eos_id, max_gen_len, prev_input):
+        """ Real inference process of model. """
+        raise NotImplementedError
+
+    def forward(self,
+                inputs,
+                is_training=False,
+                with_label=False,
+                data_file=None):
+        """
+        Forward process, include real forward, collect metrices and optimize(optional)
+
+        @params : inputs : input data
+        @type : dict of numpy.ndarray/int/float/...
+        """
+        if is_training:
+            self.train()
+        else:
+            self.eval()
+
+        with_label = False if self.abandon_label else with_label
+        outputs = self._forward(inputs, is_training, with_label=with_label)
+        metrics = self._collect_metrics(
+            inputs, outputs, with_label=with_label, data_file=data_file)
+
+        return metrics
+
+    def infer(self,
+              inputs,
+              start_id=None,
+              eos_id=None,
+              max_gen_len=None,
+              prev_input=None):
+        """
+        Inference process.
+
+        @params : inputs : input data
+        @type : dict of numpy.ndarray/int/float/...
+        """
+        self.eval()
+        results = self._infer(
+            inputs,
+            start_id=start_id,
+            eos_id=eos_id,
+            max_gen_len=max_gen_len,
+            prev_input=prev_input)
+        return results
diff --git a/modelscope/models/nlp/space/model/unified_transformer.py b/modelscope/models/nlp/space/model/unified_transformer.py
new file mode 100644
index 00000000..a25bc7f4
--- /dev/null
+++ b/modelscope/models/nlp/space/model/unified_transformer.py
@@ -0,0 +1,322 @@
+"""
+UnifiedTransformer
+"""
+
+import numpy as np
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+
+from modelscope.models.nlp.space.model.model_base import ModelBase
+from modelscope.models.nlp.space.modules.embedder import Embedder
+from modelscope.models.nlp.space.modules.transformer_block import \
+    TransformerBlock
+
+
+class UnifiedTransformer(ModelBase):
+    """
+    Implement unified transformer.
+    """
+
+    def __init__(self, model_dir, config, reader, generator, dtype='float32'):
+        super(UnifiedTransformer, self).__init__(model_dir, config)
+        self.reader = reader
+        self.generator = generator
+        self.policy = config.BPETextField.policy
+        self.generation = config.BPETextField.generation
+        self.num_token_embeddings = config.Model.num_token_embeddings
+        self.num_pos_embeddings = config.Model.num_pos_embeddings
+        self.num_type_embeddings = config.Model.num_type_embeddings
+        self.num_turn_embeddings = config.Model.num_turn_embeddings
+        self.temperature = config.Model.temperature
+        self.hidden_dim = config.Model.hidden_dim
+        self.num_heads = config.Model.num_heads
+        self.num_layers = config.Model.num_layers
+        self.padding_idx = config.Model.padding_idx
+        self.dropout = config.Model.dropout
+        self.embed_dropout = config.Model.embed_dropout
+        self.attn_dropout = config.Model.attn_dropout
+        self.ff_dropout = config.Model.ff_dropout
+        self.mlm_ratio = config.Model.mlm_ratio
+        self.mmd_ratio = config.Model.mmd_ratio
+        self.pos_trainable = config.Model.pos_trainable
+        self.label_smooth = config.Model.label_smooth
+        self.initializer_range = config.Model.initializer_range
+        self.gradient_accumulation_steps = config.Model.gradient_accumulation_steps
+        self.token_loss = config.Trainer.token_loss
+        self.learning_method = config.Dataset.learning_method
+        self.with_contrastive = config.Dataset.with_contrastive
+        self.with_query_bow = config.BPETextField.with_query_bow
+        self.with_resp_bow = config.BPETextField.with_resp_bow
+        self.with_pool = config.Model.with_pool
+        self.with_mlm = config.Dataset.with_mlm
+        self._dtype = dtype
+
+        self.embedder = Embedder(
+            self.hidden_dim,
+            self.num_token_embeddings,
+            self.num_pos_embeddings,
+            self.num_type_embeddings,
+            self.num_turn_embeddings,
+            padding_idx=self.padding_idx,
+            dropout=self.embed_dropout,
+            pos_trainable=self.pos_trainable)
+        self.embed_layer_norm = nn.LayerNorm(
+            normalized_shape=self.hidden_dim,
+            eps=1e-12,
+            elementwise_affine=True)
+
+        self.layers = nn.ModuleList([
+            TransformerBlock(self.hidden_dim, self.num_heads, self.dropout,
+                             self.attn_dropout, self.ff_dropout)
+            for _ in range(config.Model.num_layers)
+        ])
+
+        if self.with_mlm:
+            self.mlm_transform = nn.Sequential(
+                nn.Linear(self.hidden_dim, self.hidden_dim), nn.GELU(),
+                nn.LayerNorm(
+                    normalized_shape=self.hidden_dim,
+                    eps=1e-12,
+                    elementwise_affine=True))
+            self.mlm_bias = nn.Parameter(
+                torch.zeros(self.num_token_embeddings))
+
+        self.pooler = nn.Sequential(
+            nn.Linear(self.hidden_dim, self.hidden_dim), nn.Tanh())
+
+        if self.with_query_bow or self.with_resp_bow:
+            self.bow_predictor = nn.Linear(
+                self.hidden_dim, self.num_token_embeddings, bias=False)
+
+        self.sigmoid = nn.Sigmoid()
+        self.softmax = nn.Softmax(dim=-1)
+        self.bce_loss = nn.BCELoss(reduction='none')
+        self.nll_loss = nn.NLLLoss(
+            ignore_index=self.padding_idx, reduction='none')
+        self._create_parameters()
+
+        self.max_grad_norm = config.Model.max_grad_norm
+        if self.max_grad_norm is not None:
+            self.grad_clip = self.max_grad_norm
+        else:
+            self.grad_clip = None
+        self.weight_decay = config.Model.weight_decay
+
+        if self.use_gpu:
+            self.cuda()
+
+        return
+
+    def _create_parameters(self):
+        """ Create model's paramters. """
+        sequence_mask = np.tri(
+            self.num_pos_embeddings,
+            self.num_pos_embeddings,
+            dtype=self._dtype)
+        self.sequence_mask = torch.tensor(sequence_mask)
+        return
+
+    def _create_mask(self,
+                     input_mask,
+                     append_head=False,
+                     auto_regressive=False):
+        """
+        Create attention mask.
+        创建从序列形式到矩阵形式的mask：[batch_size, max_seq_len， 1] -> [batch_size, max_seq_len, max_seq_len]
+        mask除了要考虑attention mask（自回归），还需要考虑pad的mask（自回归和双向）
+        注：
+        1. 一个句子中的非<pad>词看整个句子，该句中只有<pad>词才被mask
+        2. 一个句子中的<pad>词看整个句子，该句的所有词都应该被mask
+
+        @param : input_mask
+        @type : Variable(shape: [batch_size, max_seq_len])
+
+        @param : auto_regressive
+        @type : bool
+        """
+        seq_len = input_mask.shape[1]
+
+        input_mask = input_mask.float()
+        mask1 = input_mask.unsqueeze(-1).repeat(1, 1, seq_len)
+        mask2 = mask1.permute(0, 2, 1)
+        mask = mask1 * mask2
+
+        if append_head:
+            # 拼接上句首位置([M]/z)的mask
+            mask = torch.cat([mask[:, :1, :], mask], dim=1)
+            mask = torch.cat([mask[:, :, :1], mask], dim=2)
+            seq_len += 1
+
+        if auto_regressive:
+            # 将tgt端的<pad> mask和自回归attention mask融合
+            seq_mask = self.sequence_mask[:seq_len, :seq_len]
+            seq_mask = seq_mask.to(mask.device)
+            mask = mask * seq_mask
+
+        mask = 1 - mask
+        return mask
+
+    def _join_mask(self, mask1, mask2):
+        """
+        Merge source attention mask and target attention mask.
+        合并后的整个mask矩阵可以分为四个部分：左上lu/右上ru/左下lb/右下rb
+
+        @param : mask1 : source attention mask
+        @type : Variable(shape: [batch_size, max_src_len, max_src_len])
+
+        @param : mask1 : target attention mask
+        @type : Variable(shape: [batch_size, max_tgt_len, max_tgt_len])
+        """
+        batch_size = mask1.shape[0]
+        seq_len1 = mask1.shape[1]
+        seq_len2 = mask2.shape[1]
+        # seq_len = seq_len1 + seq_len2
+
+        mask_lu = mask1
+        mask_ru = torch.ones(batch_size, seq_len1, seq_len2)
+        if self.use_gpu:
+            mask_ru = mask_ru.cuda()
+        mask3 = mask2[:, :, :1].repeat(1, 1, seq_len1)
+        mask4 = mask1[:, :1].repeat(1, seq_len2, 1)
+        mask_lb = mask3 + mask4 - mask3 * mask4
+        mask_rb = mask2
+        mask_u = torch.cat([mask_lu, mask_ru], dim=2)
+        mask_b = torch.cat([mask_lb, mask_rb], dim=2)
+        mask = torch.cat([mask_u, mask_b], dim=1)
+        return mask
+
+    def _mlm_head(self, mlm_embed):
+        mlm_embed = self.mlm_transform(mlm_embed)
+        mlm_logits = torch.matmul(
+            mlm_embed, self.embedder.token_embedding.weight.T) + self.mlm_bias
+        mlm_probs = self.softmax(mlm_logits)
+        return mlm_probs
+
+    def _dec_head(self, dec_embed):
+        dec_logits = torch.matmul(dec_embed,
+                                  self.embedder.token_embedding.weight.T)
+        dec_probs = self.softmax(dec_logits)
+        return dec_probs
+
+    def _refactor_feature(self, features):
+        features = self.pooler(features) if self.with_pool else features
+        batch_size = features.size(0) // 2
+        features = \
+            torch.cat(
+                [features[:batch_size].unsqueeze(1), features[batch_size:].unsqueeze(1)],
+                dim=1
+            )
+        features = F.normalize(features, dim=-1, p=2)
+        return features
+
+    def _encoder_network(self,
+                         input_token,
+                         input_mask,
+                         input_pos=None,
+                         input_type=None,
+                         input_turn=None):
+        embed = self.embedder(input_token, input_pos, input_type, input_turn)
+        embed = self.embed_layer_norm(embed)
+        mask = self._create_mask(input_mask, auto_regressive=False)
+
+        for layer in self.layers:
+            embed = layer(embed, mask, None)
+
+        return embed
+
+    def _encoder_decoder_network(self,
+                                 src_token,
+                                 src_mask,
+                                 tgt_token,
+                                 tgt_mask,
+                                 src_pos=None,
+                                 src_type=None,
+                                 src_turn=None,
+                                 tgt_pos=None,
+                                 tgt_type=None,
+                                 tgt_turn=None):
+        src_embed = self.embedder(src_token, src_pos, src_type, src_turn)
+        tgt_embed = self.embedder(tgt_token, tgt_pos, tgt_type, tgt_turn)
+        embed = torch.cat([src_embed, tgt_embed], dim=1)
+        embed = self.embed_layer_norm(embed)
+
+        enc_mask = self._create_mask(src_mask, auto_regressive=False)
+        dec_mask = self._create_mask(tgt_mask, auto_regressive=True)
+        mask = self._join_mask(enc_mask, dec_mask)
+
+        for layer in self.layers:
+            embed = layer(embed, mask, None)
+
+        tgt_len = tgt_token.shape[1]
+        enc_embed = embed[:, :-tgt_len]
+        dec_embed = embed[:, -tgt_len:]
+
+        return enc_embed, dec_embed
+
+    def _encoder_prompt_decoder_network(self,
+                                        src_token,
+                                        src_mask,
+                                        tgt_token,
+                                        tgt_mask,
+                                        prompt_token,
+                                        prompt_mask,
+                                        src_pos=None,
+                                        src_type=None,
+                                        src_turn=None,
+                                        tgt_pos=None,
+                                        tgt_type=None,
+                                        tgt_turn=None,
+                                        prompt_pos=None,
+                                        prompt_type=None,
+                                        prompt_turn=None):
+        src_embed = self.embedder(src_token, src_pos, src_type, src_turn)
+        tgt_embed = self.embedder(tgt_token, tgt_pos, tgt_type, tgt_turn)
+        prompt_embed = self.embedder(prompt_token, prompt_pos, prompt_type,
+                                     prompt_turn)
+
+        embed = torch.cat([src_embed, prompt_embed, tgt_embed], dim=1)
+        embed = self.embed_layer_norm(embed)
+
+        enc_mask = self._create_mask(src_mask, auto_regressive=False)
+        dec_mask = self._create_mask(
+            torch.cat([prompt_mask, tgt_mask], dim=1), auto_regressive=True)
+        mask = self._join_mask(enc_mask, dec_mask)
+
+        for layer in self.layers:
+            embed = layer(embed, mask, None)
+
+        src_len = src_token.shape[1]
+        tgt_len = tgt_token.shape[1]
+        enc_embed = embed[:, :src_len]
+        dec_embed = embed[:, -tgt_len:]
+        prompt_embed = embed[:, src_len:-tgt_len]
+
+        return enc_embed, dec_embed, prompt_embed
+
+    def _optimize(self, loss, optimizer=None, lr_scheduler=None):
+        """ Optimize loss function and update model. """
+        assert optimizer is not None
+        optimizer.zero_grad()
+        loss.backward()
+
+        if self.grad_clip is not None and self.grad_clip > 0:
+            torch.nn.utils.clip_grad_norm_(
+                parameters=self.parameters(), max_norm=self.grad_clip)
+        optimizer.step()
+        if lr_scheduler is not None:
+            lr_scheduler.step()
+        return
+
+    def _infer(self,
+               inputs,
+               start_id=None,
+               eos_id=None,
+               max_gen_len=None,
+               prev_input=None):
+        """ Real inference process of model. """
+        results = {}
+        return results
+
+
+UnifiedTransformer.register('UnifiedTransformer')
diff --git a/modelscope/models/nlp/space/modules/__init__.py b/modelscope/models/nlp/space/modules/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/modelscope/models/nlp/space/modules/embedder.py b/modelscope/models/nlp/space/modules/embedder.py
new file mode 100644
index 00000000..4fb592ef
--- /dev/null
+++ b/modelscope/models/nlp/space/modules/embedder.py
@@ -0,0 +1,67 @@
+"""
+Embedder class.
+"""
+
+import torch
+import torch.nn as nn
+
+
+class Embedder(nn.Module):
+    """
+    Composite embedding layer.
+    """
+
+    def __init__(self,
+                 hidden_dim,
+                 num_token_embeddings,
+                 num_pos_embeddings,
+                 num_type_embeddings,
+                 num_turn_embeddings,
+                 padding_idx=None,
+                 dropout=0.1,
+                 pos_trainable=False):
+        super(Embedder, self).__init__()
+
+        self.token_embedding = nn.Embedding(num_token_embeddings, hidden_dim)
+        self.pos_embedding = nn.Embedding(num_pos_embeddings, hidden_dim)
+        self.pos_embedding.weight.requires_grad = pos_trainable
+        self.type_embedding = nn.Embedding(num_type_embeddings, hidden_dim)
+        self.turn_embedding = nn.Embedding(num_turn_embeddings, hidden_dim)
+        self.dropout_layer = nn.Dropout(p=dropout)
+
+        # follow the default xavier_uniform initializer in paddle version
+        # otherwise, there are bugs for dec_probs computation in weight typing setting
+        # default norm initializer in nn.Embedding in pytorch, which samples larger values
+        nn.init.xavier_uniform_(self.token_embedding.weight)
+        nn.init.xavier_uniform_(self.pos_embedding.weight)
+        nn.init.xavier_uniform_(self.type_embedding.weight)
+        nn.init.xavier_uniform_(self.turn_embedding.weight)
+        return
+
+    def forward(self, token_inp, pos_inp=None, type_inp=None, turn_inp=None):
+        embed = self.token_embedding(token_inp)
+        if pos_inp is not None:
+            embed += self.pos_embedding(pos_inp)
+        if type_inp is not None:
+            embed += self.type_embedding(type_inp)
+        if turn_inp is not None:
+            embed += self.turn_embedding(turn_inp)
+        embed = self.dropout_layer(embed)
+        return embed
+
+
+def main():
+    import numpy as np
+
+    model = Embedder(10, 20, 20, 20, 20)
+    token_inp = torch.tensor(
+        np.random.randint(0, 19, [10, 10]).astype('int64'))
+    pos_inp = torch.tensor(np.random.randint(0, 19, [10, 10]).astype('int64'))
+    type_inp = torch.tensor(np.random.randint(0, 19, [10, 10]).astype('int64'))
+    turn_inp = torch.tensor(np.random.randint(0, 19, [10, 10]).astype('int64'))
+    out = model(token_inp, pos_inp, type_inp, turn_inp)
+    print(out)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/modelscope/models/nlp/space/modules/feedforward.py b/modelscope/models/nlp/space/modules/feedforward.py
new file mode 100644
index 00000000..e9a5f4c7
--- /dev/null
+++ b/modelscope/models/nlp/space/modules/feedforward.py
@@ -0,0 +1,43 @@
+"""
+FeedForward class.
+"""
+
+import torch
+import torch.nn as nn
+
+
+class FeedForward(nn.Module):
+    """
+    Positional feed forward layer.
+    """
+
+    def __init__(self, hidden_dim, inner_dim, dropout):
+        super(FeedForward, self).__init__()
+
+        self.hidden_dim = hidden_dim
+        self.inner_dim = inner_dim
+        self.linear_hidden = nn.Sequential(
+            nn.Linear(hidden_dim, inner_dim), nn.GELU())
+        self.linear_out = nn.Linear(inner_dim, hidden_dim)
+        self.dropout_layer = nn.Dropout(p=dropout)
+        return
+
+    def forward(self, x):
+        out = self.linear_hidden(x)
+        out = self.dropout_layer(out)
+        out = self.linear_out(out)
+        return out
+
+
+def main():
+    import numpy as np
+
+    model = FeedForward(10, 20, 0.5)
+    inp = np.random.rand(2, 3, 10).astype('float32')
+    inp = torch.tensor(inp)
+    out = model(inp)
+    print(out)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/modelscope/models/nlp/space/modules/functions.py b/modelscope/models/nlp/space/modules/functions.py
new file mode 100644
index 00000000..45c02e21
--- /dev/null
+++ b/modelscope/models/nlp/space/modules/functions.py
@@ -0,0 +1,64 @@
+"""
+Helpful functions.
+"""
+
+import numpy as np
+import torch
+import torch.nn.functional as F
+
+
+def unsqueeze(input, dims):
+    """ Implement multi-dimension unsqueeze function. """
+    if isinstance(dims, (list, tuple)):
+        dims = [
+            dim if dim >= 0 else dim + len(input.shape) + 1 for dim in dims
+        ]
+        dims = sorted(dims, reverse=True)
+        shape = list(input.shape)
+        for dim in dims:
+            shape.insert(dim, 1)
+        return torch.reshape(input, shape)
+    elif isinstance(dims, int):
+        return input.unsqueeze(dims)
+    else:
+        raise ValueError('Warning: type(dims) must in (list, tuple, int)!')
+
+
+def gumbel_softmax(input, tau=1, eps=1e-10):
+    """ Basic implement of gumbel_softmax. """
+    U = torch.tensor(np.random.rand(*input.shape))
+    gumbel = 0.0 - torch.log(eps - torch.log(U + eps))
+    y = input + gumbel
+    return F.softmax(y / tau)
+
+
+def equal(x, y, dtype=None):
+    """ Implement equal in dygraph mode. (paddle) """
+    if dtype is None:
+        dtype = 'float32'
+    if isinstance(x, torch.Tensor):
+        x = x.numpy()
+    if isinstance(y, torch.Tensor):
+        y = y.numpy()
+    out = np.equal(x, y).astype(dtype)
+    return torch.tensor(out)
+
+
+def not_equal(x, y, dtype=None):
+    """ Implement not_equal in dygraph mode. (paddle) """
+    return 1 - equal(x, y, dtype)
+
+
+if __name__ == '__main__':
+    a = torch.tensor([[1, 1], [3, 4]])
+    b = torch.tensor([[1, 1], [3, 4]])
+    c = torch.equal(a, a)
+    c1 = equal(a, 3)
+    d = 1 - torch.not_equal(a, 3).float()
+    print(c)
+    print(c1)
+    print(d)
+    e = F.gumbel_softmax(a)
+    f = a.unsqueeze(a)
+    g = unsqueeze(a, dims=[0, 0, 1])
+    print(g, g.shape)
diff --git a/modelscope/models/nlp/space/modules/multihead_attention.py b/modelscope/models/nlp/space/modules/multihead_attention.py
new file mode 100644
index 00000000..209eab5e
--- /dev/null
+++ b/modelscope/models/nlp/space/modules/multihead_attention.py
@@ -0,0 +1,109 @@
+"""
+MultiheadAttention class.
+"""
+
+import torch
+import torch.nn as nn
+
+
+class MultiheadAttention(nn.Module):
+    """
+    Multi head attention layer.
+    """
+
+    def __init__(self, hidden_dim, num_heads, dropout):
+        assert hidden_dim % num_heads == 0
+        super(MultiheadAttention, self).__init__()
+
+        self.hidden_dim = hidden_dim
+        self.num_heads = num_heads
+        self.head_dim = hidden_dim // num_heads
+        self.scale = self.head_dim**-0.5
+        self.linear_qkv = nn.Linear(hidden_dim, hidden_dim * 3)
+        self.linear_out = nn.Linear(hidden_dim, hidden_dim)
+        self.dropout_layer = nn.Dropout(p=dropout)
+        self.softmax = nn.Softmax(dim=-1)
+        return
+
+    def _split_heads(self, x, is_key=False):
+        x = x.reshape(x.size(0), x.size(1), self.num_heads, self.head_dim)
+        x = x.permute(0, 2, 3, 1) if is_key else x.permute(0, 2, 1, 3)
+        return x
+
+    def _merge_heads(self, x):
+        x = x.permute(0, 2, 1, 3)
+        x = x.reshape(x.size(0), x.size(1), self.hidden_dim)
+        return x
+
+    def _attn(self, query, key, value, mask):
+        # shape: [batch_size, num_head, seq_len, seq_len]
+        scores = torch.matmul(query, key)
+        scores = scores * self.scale
+
+        if mask is not None:
+            mask = mask.unsqueeze(1)
+            mask = mask.repeat(1, self.num_heads, 1, 1)
+            scores.masked_fill_(
+                mask.bool(),
+                float('-inf'))  # scores = (1 - mask) * scores + mask * (-1e10)
+
+        attn = self.softmax(scores)
+        attn = self.dropout_layer(attn)
+
+        if mask is not None:
+            '''
+            mask: [batch size, num_heads, seq_len, seq_len]
+            mask后两维(seq_len, seq_len)矩阵来看，其中有的行可能都是true(1)，对应句子中<pad>位看的行
+            导致softmax后该行的每个位置的attn prob都为1/n而非0，所以此处需重置为0
+
+            >>> F.softmax([-1e10, -100, -100])
+            >>> [0.00, 0.50, 0.50]
+            >>> F.softmax([-1e10, -1e10, -1e10])
+            >>> [0.33, 0.33, 0.33]
+            ==> [0.00, 0.00, 0.00]
+            '''
+            attn.masked_fill_(mask.bool(), 0.)  # attn = (1 - mask) * attn
+
+        out = torch.matmul(attn, value)
+        return out
+
+    def forward(self, inp, mask=None, cache=None):
+        """ Forward process of self attention. """
+        # shape: [batch_size, seq_len, 3 * hidden_dim]
+        qkv = self.linear_qkv(inp)
+        query, key, value = torch.split(qkv, self.hidden_dim, dim=2)
+
+        # shape: [batch_size, num_head, seq_len, head_dim]
+        query = self._split_heads(query)
+        # shape: [batch_size, num_head, head_dim, seq_len]
+        key = self._split_heads(key, is_key=True)
+        # shape: [batch_size, num_head, seq_len, head_dim]
+        value = self._split_heads(value)
+
+        if cache is not None:
+            if 'key' in cache and 'value' in cache:
+                key = torch.cat([cache['key'], key], dim=3)
+                value = torch.cat([cache['value'], value], dim=2)
+            cache['key'] = key
+            cache['value'] = value
+
+        out = self._attn(query, key, value, mask)
+        out = self._merge_heads(out)
+        out = self.linear_out(out)
+        return out
+
+
+def main():
+    import numpy as np
+
+    model = MultiheadAttention(10, 2, 0.5)
+    inp = np.random.rand(2, 3, 10).astype('float32')
+    inp = torch.tensor(inp)
+    mask = (np.random.rand(2, 3, 3) > 0.5).astype('float32')
+    mask = torch.tensor(mask)
+    out = model(inp, mask=mask, cache=None)
+    print(out)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/modelscope/models/nlp/space/modules/transformer_block.py b/modelscope/models/nlp/space/modules/transformer_block.py
new file mode 100644
index 00000000..1a0565d6
--- /dev/null
+++ b/modelscope/models/nlp/space/modules/transformer_block.py
@@ -0,0 +1,73 @@
+"""
+TransformerBlock class.
+"""
+
+import torch
+import torch.nn as nn
+
+from modelscope.models.nlp.space.modules.feedforward import FeedForward
+from modelscope.models.nlp.space.modules.multihead_attention import \
+    MultiheadAttention
+
+
+class TransformerBlock(nn.Module):
+    """
+    Transformer block module.
+    """
+
+    def __init__(self, hidden_dim, num_heads, dropout, attn_dropout,
+                 ff_dropout):
+        super(TransformerBlock, self).__init__()
+
+        self.attn = MultiheadAttention(
+            hidden_dim=hidden_dim, num_heads=num_heads, dropout=attn_dropout)
+        self.attn_norm = nn.LayerNorm(
+            normalized_shape=hidden_dim, eps=1e-12, elementwise_affine=True)
+        self.ff = FeedForward(
+            hidden_dim=hidden_dim,
+            inner_dim=4 * hidden_dim,
+            dropout=ff_dropout)
+        self.ff_norm = nn.LayerNorm(
+            normalized_shape=hidden_dim, eps=1e-12, elementwise_affine=True)
+        self.dropout_layer = nn.Dropout(p=dropout)
+        return
+
+    def forward(self, inp, mask=None, cache=None):
+        """
+        Forward process on one transformer layer.
+
+        @param : x
+        @type : Variable(shape: [batch_size, seq_len, hidden_size])
+
+        @param : memory
+        @type : Variable(shape: [batch_size, seq_len, hidden_size])
+
+        @param : mask
+
+        @param : cache
+        """
+        attn_out = self.attn(inp, mask, cache)
+        attn_out = self.dropout_layer(attn_out)
+        attn_out = self.attn_norm(attn_out + inp)
+
+        ff_out = self.ff(attn_out)
+        ff_out = self.dropout_layer(ff_out)
+        ff_out = self.ff_norm(ff_out + attn_out)
+
+        return ff_out
+
+
+def main():
+    import numpy as np
+
+    model = TransformerBlock(10, 2, 0.5, 0.5, 0.5)
+    inp = np.random.rand(2, 3, 10).astype('float32')
+    inp = torch.tensor(inp)
+    mask = (np.random.rand(2, 3, 3) > 0.5).astype('float32')
+    mask = torch.tensor(mask)
+    out = model(inp, mask=mask, cache=None)
+    print(out)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/modelscope/pipelines/__init__.py b/modelscope/pipelines/__init__.py
index 14865872..6e2645de 100644
--- a/modelscope/pipelines/__init__.py
+++ b/modelscope/pipelines/__init__.py
@@ -4,3 +4,4 @@ from .builder import pipeline
 from .cv import *  # noqa F403
 from .multi_modal import *  # noqa F403
 from .nlp import *  # noqa F403
+from .nlp.space import *  # noqa F403
diff --git a/modelscope/pipelines/base.py b/modelscope/pipelines/base.py
index 7a21d5d9..ac6a1d32 100644
--- a/modelscope/pipelines/base.py
+++ b/modelscope/pipelines/base.py
@@ -14,7 +14,7 @@ from .outputs import TASK_OUTPUTS
 from .util import is_model_name
 
 Tensor = Union['torch.Tensor', 'tf.Tensor']
-Input = Union[str, tuple, PyDataset, 'PIL.Image.Image', 'numpy.ndarray']
+Input = Union[str, tuple, dict, PyDataset, 'PIL.Image.Image', 'numpy.ndarray']
 InputModel = Union[str, Model]
 
 output_keys = [
@@ -120,6 +120,7 @@ class Pipeline(ABC):
         out = self.preprocess(input, **preprocess_params)
         out = self.forward(out, **forward_params)
         out = self.postprocess(out, **postprocess_params)
+
         self._check_output(out)
         return out
 
diff --git a/modelscope/pipelines/nlp/__init__.py b/modelscope/pipelines/nlp/__init__.py
index 090e1384..dc99a157 100644
--- a/modelscope/pipelines/nlp/__init__.py
+++ b/modelscope/pipelines/nlp/__init__.py
@@ -3,6 +3,8 @@ from .nli_pipeline import *  # noqa F403
 from .sentence_similarity_pipeline import *  # noqa F403
 from .sentiment_classification_pipeline import *  # noqa F403
 from .sequence_classification_pipeline import *  # noqa F403
+from .space.dialog_intent_prediction_pipeline import *  # noqa F403
+from .space.dialog_modeling_pipeline import *  # noqa F403
 from .text_generation_pipeline import *  # noqa F403
 from .word_segmentation_pipeline import *  # noqa F403
 from .zero_shot_classification_pipeline import *  # noqa F403
diff --git a/modelscope/pipelines/nlp/space/__init__.py b/modelscope/pipelines/nlp/space/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/modelscope/pipelines/nlp/space/dialog_intent_prediction_pipeline.py b/modelscope/pipelines/nlp/space/dialog_intent_prediction_pipeline.py
new file mode 100644
index 00000000..57245bdf
--- /dev/null
+++ b/modelscope/pipelines/nlp/space/dialog_intent_prediction_pipeline.py
@@ -0,0 +1,44 @@
+from typing import Any, Dict, Optional
+
+from modelscope.models.nlp import DialogIntentModel
+from modelscope.preprocessors import DialogIntentPredictionPreprocessor
+from modelscope.utils.constant import Tasks
+from ...base import Input, Pipeline
+from ...builder import PIPELINES
+
+__all__ = ['DialogIntentPredictionPipeline']
+
+
+@PIPELINES.register_module(
+    Tasks.dialog_intent_prediction, module_name=r'space-intent')
+class DialogIntentPredictionPipeline(Pipeline):
+
+    def __init__(self, model: DialogIntentModel,
+                 preprocessor: DialogIntentPredictionPreprocessor, **kwargs):
+        """use `model` and `preprocessor` to create a nlp text classification pipeline for prediction
+
+        Args:
+            model (SequenceClassificationModel): a model instance
+            preprocessor (SequenceClassificationPreprocessor): a preprocessor instance
+        """
+
+        super().__init__(model=model, preprocessor=preprocessor, **kwargs)
+        self.model = model
+        # self.tokenizer = preprocessor.tokenizer
+
+    def postprocess(self, inputs: Dict[str, Any]) -> Dict[str, str]:
+        """process the prediction results
+
+        Args:
+            inputs (Dict[str, Any]): _description_
+
+        Returns:
+            Dict[str, str]: the prediction results
+        """
+        import numpy as np
+        pred = inputs['pred']
+        pos = np.where(pred == np.max(pred))
+
+        result = {'pred': pred, 'label': pos[0]}
+
+        return result
diff --git a/modelscope/pipelines/nlp/space/dialog_modeling_pipeline.py b/modelscope/pipelines/nlp/space/dialog_modeling_pipeline.py
new file mode 100644
index 00000000..afa352b6
--- /dev/null
+++ b/modelscope/pipelines/nlp/space/dialog_modeling_pipeline.py
@@ -0,0 +1,46 @@
+from typing import Any, Dict, Optional
+
+from modelscope.models.nlp import DialogModelingModel
+from modelscope.preprocessors import DialogModelingPreprocessor
+from modelscope.utils.constant import Tasks
+from ...base import Pipeline, Tensor
+from ...builder import PIPELINES
+
+__all__ = ['DialogModelingPipeline']
+
+
+@PIPELINES.register_module(
+    Tasks.dialog_modeling, module_name=r'space-modeling')
+class DialogModelingPipeline(Pipeline):
+
+    def __init__(self, model: DialogModelingModel,
+                 preprocessor: DialogModelingPreprocessor, **kwargs):
+        """use `model` and `preprocessor` to create a nlp text classification pipeline for prediction
+
+        Args:
+            model (SequenceClassificationModel): a model instance
+            preprocessor (SequenceClassificationPreprocessor): a preprocessor instance
+        """
+
+        super().__init__(model=model, preprocessor=preprocessor, **kwargs)
+        self.model = model
+        self.preprocessor = preprocessor
+
+    def postprocess(self, inputs: Dict[str, Tensor]) -> Dict[str, str]:
+        """process the prediction results
+
+        Args:
+            inputs (Dict[str, Any]): _description_
+
+        Returns:
+            Dict[str, str]: the prediction results
+        """
+        sys_rsp = self.preprocessor.text_field.tokenizer.convert_ids_to_tokens(
+            inputs['resp'])
+        assert len(sys_rsp) > 2
+        sys_rsp = sys_rsp[1:len(sys_rsp) - 1]
+        # sys_rsp = self.preprocessor.text_field.tokenizer.
+
+        inputs['sys'] = sys_rsp
+
+        return inputs
diff --git a/modelscope/preprocessors/__init__.py b/modelscope/preprocessors/__init__.py
index 50860514..a94cbca1 100644
--- a/modelscope/preprocessors/__init__.py
+++ b/modelscope/preprocessors/__init__.py
@@ -7,4 +7,6 @@ from .common import Compose
 from .image import LoadImage, load_image
 from .multi_model import OfaImageCaptionPreprocessor
 from .nlp import *  # noqa F403
+from .space.dialog_intent_prediction_preprocessor import *  # noqa F403
+from .space.dialog_modeling_preprocessor import *  # noqa F403
 from .text_to_speech import *  # noqa F403
diff --git a/modelscope/preprocessors/space/__init__.py b/modelscope/preprocessors/space/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/modelscope/preprocessors/space/dialog_intent_prediction_preprocessor.py b/modelscope/preprocessors/space/dialog_intent_prediction_preprocessor.py
new file mode 100644
index 00000000..c5a6b34c
--- /dev/null
+++ b/modelscope/preprocessors/space/dialog_intent_prediction_preprocessor.py
@@ -0,0 +1,49 @@
+# Copyright (c) Alibaba, Inc. and its affiliates.
+
+import os
+from typing import Any, Dict
+
+from modelscope.preprocessors.space.fields.intent_field import \
+    IntentBPETextField
+from modelscope.utils.config import Config
+from modelscope.utils.constant import Fields
+from modelscope.utils.type_assert import type_assert
+from ..base import Preprocessor
+from ..builder import PREPROCESSORS
+
+__all__ = ['DialogIntentPredictionPreprocessor']
+
+
+@PREPROCESSORS.register_module(Fields.nlp, module_name=r'space-intent')
+class DialogIntentPredictionPreprocessor(Preprocessor):
+
+    def __init__(self, model_dir: str, *args, **kwargs):
+        """preprocess the data via the vocab.txt from the `model_dir` path
+
+        Args:
+            model_dir (str): model path
+        """
+        super().__init__(*args, **kwargs)
+
+        self.model_dir: str = model_dir
+        self.config = Config.from_file(
+            os.path.join(self.model_dir, 'configuration.json'))
+        self.text_field = IntentBPETextField(
+            self.model_dir, config=self.config)
+
+    @type_assert(object, str)
+    def __call__(self, data: str) -> Dict[str, Any]:
+        """process the raw input data
+
+        Args:
+            data (str): a sentence
+                Example:
+                    'you are so handsome.'
+
+        Returns:
+            Dict[str, Any]: the preprocessed data
+        """
+        samples = self.text_field.preprocessor([data])
+        samples, _ = self.text_field.collate_fn_multi_turn(samples)
+
+        return samples
diff --git a/modelscope/preprocessors/space/dialog_modeling_preprocessor.py b/modelscope/preprocessors/space/dialog_modeling_preprocessor.py
new file mode 100644
index 00000000..5061ba35
--- /dev/null
+++ b/modelscope/preprocessors/space/dialog_modeling_preprocessor.py
@@ -0,0 +1,51 @@
+# Copyright (c) Alibaba, Inc. and its affiliates.
+
+import os
+import uuid
+from typing import Any, Dict, Union
+
+from modelscope.preprocessors.space.fields.gen_field import \
+    MultiWOZBPETextField
+from modelscope.utils.config import Config
+from modelscope.utils.constant import Fields, InputFields
+from modelscope.utils.type_assert import type_assert
+from ..base import Preprocessor
+from ..builder import PREPROCESSORS
+
+__all__ = ['DialogModelingPreprocessor']
+
+
+@PREPROCESSORS.register_module(Fields.nlp, module_name=r'space-modeling')
+class DialogModelingPreprocessor(Preprocessor):
+
+    def __init__(self, model_dir: str, *args, **kwargs):
+        """preprocess the data via the vocab.txt from the `model_dir` path
+
+        Args:
+            model_dir (str): model path
+        """
+        super().__init__(*args, **kwargs)
+
+        self.model_dir: str = model_dir
+        self.config = Config.from_file(
+            os.path.join(self.model_dir, 'configuration.json'))
+        self.text_field = MultiWOZBPETextField(
+            self.model_dir, config=self.config)
+
+    @type_assert(object, Dict)
+    def __call__(self, data: Dict[str, Any]) -> Dict[str, Any]:
+        """process the raw input data
+
+        Args:
+            data (str): a sentence
+                Example:
+                    'you are so handsome.'
+
+        Returns:
+            Dict[str, Any]: the preprocessed data
+        """
+
+        user_ids = self.text_field.get_ids(data['user_input'])
+        data['user'] = user_ids
+
+        return data
diff --git a/modelscope/preprocessors/space/fields/__init__.py b/modelscope/preprocessors/space/fields/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/modelscope/preprocessors/space/fields/dst_processors.py b/modelscope/preprocessors/space/fields/dst_processors.py
new file mode 100644
index 00000000..6d888bff
--- /dev/null
+++ b/modelscope/preprocessors/space/fields/dst_processors.py
@@ -0,0 +1,1522 @@
+#
+# Copyright 2020 Heinrich Heine University Duesseldorf
+#
+# Part of this code is based on the source code of BERT-DST
+# (arXiv:1907.03040)
+# Part of this code is based on the source code of Transformers
+# (arXiv:1910.03771)
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import logging
+import re
+
+import json
+import numpy as np
+import six
+from tqdm import tqdm
+
+logger = logging.getLogger(__name__)
+USER_NAME = 'User'
+SYSTEM_NAME = 'System'
+DIALOG_ACT = 'Dialog_Act'
+
+utter1 = {
+    'User-1':
+    "I'd really like to take my client out to a nice restaurant that serves indian food."
+}
+history_states1 = [
+    {},
+]
+utter2 = {
+    'User-1':
+    "I'd really like to take my client out to a nice restaurant that serves indian food.",
+    'System-1':
+    'I show many restaurants that serve Indian food in that price range. What area would you like to travel to?',
+    'Dialog_Act-1': {
+        'Restaurant-Inform': [['choice', 'many'], ['food', 'Indian'],
+                              ['pricerange', 'that price range']]
+    },
+    'User-2':
+    'I am looking for an expensive indian restaurant in the area of centre.',
+}
+
+history_states2 = [{}, {
+    'attraction': {
+        'book': {
+            'booked': []
+        },
+        'semi': {
+            'area': '',
+            'name': '',
+            'type': ''
+        }
+    },
+    'hospital': {
+        'book': {
+            'booked': []
+        },
+        'semi': {
+            'department': ''
+        }
+    },
+    'hotel': {
+        'book': {
+            'booked': [{
+                'name': 'alexander bed and breakfast',
+                'reference': 'JXVKZ7KV'
+            }],
+            'day':
+            'sunday',
+            'people':
+            '6',
+            'stay':
+            '4'
+        },
+        'semi': {
+            'area': '',
+            'internet': 'yes',
+            'name': 'alexander bed and breakfast',
+            'parking': 'yes',
+            'pricerange': 'cheap',
+            'stars': '',
+            'type': 'guesthouse'
+        }
+    },
+    'police': {
+        'book': {
+            'booked': []
+        },
+        'semi': {}
+    },
+    'restaurant': {
+        'book': {
+            'booked': [{
+                'name': 'ask',
+                'reference': 'Y2Y8QYBY'
+            }],
+            'day': 'sunday',
+            'people': '6',
+            'time': '18:45'
+        },
+        'semi': {
+            'area': 'centre',
+            'food': 'italian',
+            'name': 'ask',
+            'pricerange': 'cheap'
+        }
+    },
+    'taxi': {
+        'book': {
+            'booked': []
+        },
+        'semi': {
+            'arriveBy': '',
+            'departure': '',
+            'destination': '',
+            'leaveAt': ''
+        }
+    },
+    'train': {
+        'book': {
+            'booked': [],
+            'people': ''
+        },
+        'semi': {
+            'arriveBy': '',
+            'day': '',
+            'departure': '',
+            'destination': '',
+            'leaveAt': ''
+        }
+    }
+}, {}]
+
+utter3 = {
+    'User-1':
+    "I'd really like to take my client out to a nice restaurant that serves indian food.",
+    'System-1':
+    'I show many restaurants that serve Indian food in that price range. What area would you like to travel to?',
+    'Dialog_Act-1': {
+        'Restaurant-Inform': [['choice', 'many'], ['food', 'Indian'],
+                              ['pricerange', 'that price range']]
+    },
+    'User-2':
+    'I am looking for an expensive indian restaurant in the area of centre.',
+    'System-2':
+    'Might I recommend Saffron Brasserie? That is an expensive Indian restaurant in the center of town. I can book a table for you, if you like.',
+    'Dialog_Act-2': {
+        'Restaurant-Recommend': [['area', 'center of town'],
+                                 ['food', 'Indian'],
+                                 ['name', 'Saffron Brasserie'],
+                                 ['pricerange', 'expensive']]
+    },
+    'User-3': 'Sure thing, please book for 6 people at 19:30 on Saturday.'
+}
+
+history_states3 = [{}, {
+    'attraction': {
+        'book': {
+            'booked': []
+        },
+        'semi': {
+            'area': '',
+            'name': '',
+            'type': ''
+        }
+    },
+    'hospital': {
+        'book': {
+            'booked': []
+        },
+        'semi': {
+            'department': ''
+        }
+    },
+    'hotel': {
+        'book': {
+            'booked': [{
+                'name': 'alexander bed and breakfast',
+                'reference': 'JXVKZ7KV'
+            }],
+            'day':
+            'sunday',
+            'people':
+            '6',
+            'stay':
+            '4'
+        },
+        'semi': {
+            'area': '',
+            'internet': 'yes',
+            'name': 'alexander bed and breakfast',
+            'parking': 'yes',
+            'pricerange': 'cheap',
+            'stars': '',
+            'type': 'guesthouse'
+        }
+    },
+    'police': {
+        'book': {
+            'booked': []
+        },
+        'semi': {}
+    },
+    'restaurant': {
+        'book': {
+            'booked': [{
+                'name': 'ask',
+                'reference': 'Y2Y8QYBY'
+            }],
+            'day': 'sunday',
+            'people': '6',
+            'time': '18:45'
+        },
+        'semi': {
+            'area': 'centre',
+            'food': 'italian',
+            'name': 'ask',
+            'pricerange': 'cheap'
+        }
+    },
+    'taxi': {
+        'book': {
+            'booked': []
+        },
+        'semi': {
+            'arriveBy': '',
+            'departure': '',
+            'destination': '',
+            'leaveAt': ''
+        }
+    },
+    'train': {
+        'book': {
+            'booked': [],
+            'people': ''
+        },
+        'semi': {
+            'arriveBy': '',
+            'day': '',
+            'departure': '',
+            'destination': '',
+            'leaveAt': ''
+        }
+    }
+}, {}, {
+    'attraction': {
+        'book': {
+            'booked': []
+        },
+        'semi': {
+            'area': '',
+            'name': '',
+            'type': ''
+        }
+    },
+    'hospital': {
+        'book': {
+            'booked': []
+        },
+        'semi': {
+            'department': ''
+        }
+    },
+    'hotel': {
+        'book': {
+            'booked': [{
+                'name': 'alexander bed and breakfast',
+                'reference': 'JXVKZ7KV'
+            }],
+            'day':
+            'sunday',
+            'people':
+            '6',
+            'stay':
+            '4'
+        },
+        'semi': {
+            'area': '',
+            'internet': 'yes',
+            'name': 'alexander bed and breakfast',
+            'parking': 'yes',
+            'pricerange': 'cheap',
+            'stars': '',
+            'type': 'guesthouse'
+        }
+    },
+    'police': {
+        'book': {
+            'booked': []
+        },
+        'semi': {}
+    },
+    'restaurant': {
+        'book': {
+            'booked': [{
+                'name': 'ask',
+                'reference': 'Y2Y8QYBY'
+            }],
+            'day': 'sunday',
+            'people': '6',
+            'time': '18:45'
+        },
+        'semi': {
+            'area': 'centre',
+            'food': 'italian',
+            'name': 'ask',
+            'pricerange': 'cheap'
+        }
+    },
+    'taxi': {
+        'book': {
+            'booked': []
+        },
+        'semi': {
+            'arriveBy': '',
+            'departure': '',
+            'destination': '',
+            'leaveAt': ''
+        }
+    },
+    'train': {
+        'book': {
+            'booked': [],
+            'people': ''
+        },
+        'semi': {
+            'arriveBy': '',
+            'day': '',
+            'departure': '',
+            'destination': '',
+            'leaveAt': ''
+        }
+    }
+}, {}]
+
+
+class DSTProcessor(object):
+
+    ACTS_DICT = {
+        'taxi-depart': 'taxi-departure',
+        'taxi-dest': 'taxi-destination',
+        'taxi-leaveat': 'taxi-leaveAt',
+        'taxi-arriveby': 'taxi-arriveBy',
+        'train-depart': 'train-departure',
+        'train-dest': 'train-destination',
+        'train-leaveat': 'train-leaveAt',
+        'train-arriveby': 'train-arriveBy',
+        'train-bookpeople': 'train-book_people',
+        'restaurant-price': 'restaurant-pricerange',
+        'restaurant-bookpeople': 'restaurant-book_people',
+        'restaurant-bookday': 'restaurant-book_day',
+        'restaurant-booktime': 'restaurant-book_time',
+        'hotel-price': 'hotel-pricerange',
+        'hotel-bookpeople': 'hotel-book_people',
+        'hotel-bookday': 'hotel-book_day',
+        'hotel-bookstay': 'hotel-book_stay',
+        'booking-bookpeople': 'booking-book_people',
+        'booking-bookday': 'booking-book_day',
+        'booking-bookstay': 'booking-book_stay',
+        'booking-booktime': 'booking-book_time',
+    }
+
+    LABEL_MAPS = {}  # Loaded from file
+
+    def __init__(self):
+        # Required for mapping slot names in dialogue_acts.json file
+        # to proper designations.
+        pass
+
+    def _convert_inputs_to_utterances(self, inputs: dict,
+                                      history_states: list):
+        """This method is to generate the utterances with user, sys, dialog_acts and metadata, while metadata is from the history_states or the output from the inference pipline"""
+
+        utterances = []
+        user_inputs = []
+        sys_gen_inputs = []
+        dialog_acts_inputs = []
+        for i, item in enumerate(inputs):
+            name, turn = item.split('-')
+            if name == USER_NAME:
+                user_inputs.insert(int(turn) - 1, inputs[item])
+            elif name == SYSTEM_NAME:
+                sys_gen_inputs.insert(int(turn) - 1, inputs[item])
+            else:
+                dialog_acts_inputs.insert(int(turn) - 1, inputs[item])
+
+        # user is leading the topic should aways larger than sys and dialog acts
+        assert len(user_inputs) - 1 == len(sys_gen_inputs)
+        assert len(user_inputs) - 1 == len(dialog_acts_inputs)
+        # the history states record both user and sys states
+        assert len(history_states) == len(user_inputs) + len(sys_gen_inputs)
+
+        # the dialog_act at user turn is useless
+        for i, item in enumerate(history_states):
+            utterance = {}
+            # the dialog_act at user turn is useless
+            utterance['dialog_act'] = dialog_acts_inputs[
+                i // 2] if i % 2 == 1 else {}
+            utterance['text'] = sys_gen_inputs[
+                i // 2] if i % 2 == 1 else user_inputs[i // 2]
+            utterance['metadata'] = item
+            utterance['span_info'] = []
+            utterances.append(utterance)
+
+        return utterances
+
+    def _load_acts(self, inputs: dict, dialog_id='example.json'):
+        dialog_acts_inputs = []
+        for i, item in enumerate(inputs):
+            name, turn = item.split('-')
+            if name == DIALOG_ACT:
+                dialog_acts_inputs.insert(int(turn) - 1, inputs[item])
+        s_dict = {}
+
+        for j, item in enumerate(dialog_acts_inputs):
+            if isinstance(item, dict):
+                for a in item:
+                    aa = a.lower().split('-')
+                    if aa[1] == 'inform' or aa[1] == 'recommend' or aa[
+                            1] == 'select' or aa[1] == 'book':
+                        for i in item[a]:
+                            s = i[0].lower()
+                            v = i[1].lower().strip()
+                            if s == 'none' or v == '?' or v == 'none':
+                                continue
+                            slot = aa[0] + '-' + s
+                            if slot in self.ACTS_DICT:
+                                slot = self.ACTS_DICT[slot]
+                            key = dialog_id, str(int(j) + 1), slot
+                            # In case of multiple mentioned values...
+                            # ... Option 1: Keep first informed value
+                            if key not in s_dict:
+                                s_dict[key] = list([v])
+                            # ... Option 2: Keep last informed value
+                            #s_dict[key] = list([v])
+
+        return s_dict
+
+
+class multiwoz22Processor(DSTProcessor):
+
+    def __init__(self):
+        super().__init__()
+
+    def normalize_time(self, text):
+        text = re.sub('(\d{1})(a\.?m\.?|p\.?m\.?)', r'\1 \2',
+                      text)  # am/pm without space
+        text = re.sub('(^| )(\d{1,2}) (a\.?m\.?|p\.?m\.?)', r'\1\2:00 \3',
+                      text)  # am/pm short to long form
+        text = re.sub(
+            '(^| )(at|from|by|until|after) ?(\d{1,2}) ?(\d{2})([^0-9]|$)',
+            r'\1\2 \3:\4\5', text)  # Missing separator
+        text = re.sub('(^| )(\d{2})[;.,](\d{2})', r'\1\2:\3',
+                      text)  # Wrong separator
+        text = re.sub('(^| )(at|from|by|until|after) ?(\d{1,2})([;., ]|$)',
+                      r'\1\2 \3:00\4', text)  # normalize simple full hour time
+        text = re.sub('(^| )(\d{1}:\d{2})', r'\g<1>0\2',
+                      text)  # Add missing leading 0
+        # Map 12 hour times to 24 hour times
+        text = re.sub(
+            '(\d{2})(:\d{2}) ?p\.?m\.?', lambda x: str(
+                int(x.groups()[0]) + 12
+                if int(x.groups()[0]) < 12 else int(x.groups()[0])) + x.groups(
+                )[1], text)
+        text = re.sub('(^| )24:(\d{2})', r'\g<1>00:\2',
+                      text)  # Correct times that use 24 as hour
+        return text
+
+    def normalize_text(self, text):
+        text = self.normalize_time(text)
+        text = re.sub("n't", ' not', text)
+        text = re.sub('(^| )zero(-| )star([s.,? ]|$)', r'\g<1>0 star\3', text)
+        text = re.sub('(^| )one(-| )star([s.,? ]|$)', r'\g<1>1 star\3', text)
+        text = re.sub('(^| )two(-| )star([s.,? ]|$)', r'\g<1>2 star\3', text)
+        text = re.sub('(^| )three(-| )star([s.,? ]|$)', r'\g<1>3 star\3', text)
+        text = re.sub('(^| )four(-| )star([s.,? ]|$)', r'\g<1>4 star\3', text)
+        text = re.sub('(^| )five(-| )star([s.,? ]|$)', r'\g<1>5 star\3', text)
+        text = re.sub('archaelogy', 'archaeology', text)  # Systematic typo
+        text = re.sub('guesthouse', 'guest house', text)  # Normalization
+        text = re.sub('(^| )b ?& ?b([.,? ]|$)', r'\1bed and breakfast\2',
+                      text)  # Normalization
+        text = re.sub('bed & breakfast', 'bed and breakfast',
+                      text)  # Normalization
+        return text
+
+    # Loads the dialogue_acts.json and returns a list
+    # of slot-value pairs.
+    def load_acts(self, input_file):
+        with open(input_file) as f:
+            acts = json.load(f)
+        s_dict = {}
+        for d in acts:
+            for t in acts[d]:
+                if int(t) % 2 == 0:
+                    continue
+                # Only process, if turn has annotation
+                if isinstance(acts[d][t]['dialog_act'], dict):
+                    for a in acts[d][t]['dialog_act']:
+                        aa = a.lower().split('-')
+                        if aa[1] == 'inform' or aa[1] == 'recommend' or aa[
+                                1] == 'select' or aa[1] == 'book':
+                            for i in acts[d][t]['dialog_act'][a]:
+                                s = i[0].lower()
+                                v = i[1].lower().strip()
+                                if s == 'none' or v == '?' or v == 'none':
+                                    continue
+                                slot = aa[0] + '-' + s
+                                if slot in self.ACTS_DICT:
+                                    slot = self.ACTS_DICT[slot]
+                                key = d, str(int(t) // 2 + 1), slot
+                                # In case of multiple mentioned values...
+                                # ... Option 1: Keep first informed value
+                                if key not in s_dict:
+                                    s_dict[key] = list([v])
+                                # ... Option 2: Keep last informed value
+                                #s_dict[key] = list([v])
+        return s_dict
+
+    # This should only contain label normalizations. All other mappings should
+    # be defined in LABEL_MAPS.
+    def normalize_label(self, slot, value_label):
+        # Normalization of empty slots
+        if value_label == '' or value_label == 'not mentioned':
+            return 'none'
+
+        # Normalization of time slots
+        if 'leaveAt' in slot or 'arriveBy' in slot or slot == 'restaurant-book_time':
+            return self.normalize_time(value_label)
+
+        # Normalization
+        if 'type' in slot or 'name' in slot or 'destination' in slot or 'departure' in slot:
+            value_label = re.sub('guesthouse', 'guest house', value_label)
+
+        # Map to boolean slots
+        if slot == 'hotel-parking' or slot == 'hotel-internet':
+            if value_label == 'yes' or value_label == 'free':
+                return 'true'
+            if value_label == 'no':
+                return 'false'
+        if slot == 'hotel-type':
+            if value_label == 'hotel':
+                return 'true'
+            if value_label == 'guest house':
+                return 'false'
+
+        return value_label
+
+    def tokenize(self, utt):
+        utt_lower = convert_to_unicode(utt).lower()
+        utt_lower = self.normalize_text(utt_lower)
+        utt_tok = [
+            tok for tok in map(str.strip, re.split('(\W+)', utt_lower))
+            if len(tok) > 0
+        ]
+        return utt_tok
+
+    def delex_utt(self, utt, values, unk_token='[UNK]'):
+        utt_norm = self.tokenize(utt)
+        for s, vals in values.items():
+            # TODO vals可能不是数组形式，而是初始化的字符串"none"
+            for v in vals:
+                if v != 'none':
+                    v_norm = self.tokenize(v)
+                    v_len = len(v_norm)
+                    for i in range(len(utt_norm) + 1 - v_len):
+                        if utt_norm[i:i + v_len] == v_norm:
+                            utt_norm[i:i + v_len] = [unk_token] * v_len
+        return utt_norm
+
+    def get_token_pos(self, tok_list, value_label):
+        find_pos = []
+        found = False
+        label_list = [
+            item for item in map(str.strip, re.split('(\W+)', value_label))
+            if len(item) > 0
+        ]
+        len_label = len(label_list)
+        for i in range(len(tok_list) + 1 - len_label):
+            if tok_list[i:i + len_label] == label_list:
+                find_pos.append((i, i + len_label))  # start, exclusive_end
+                found = True
+        return found, find_pos
+
+    def check_label_existence(self, value_label, usr_utt_tok):
+        in_usr, usr_pos = self.get_token_pos(usr_utt_tok, value_label)
+        # If no hit even though there should be one, check for value label variants
+        if not in_usr and value_label in self.LABEL_MAPS:
+            for value_label_variant in self.LABEL_MAPS[value_label]:
+                in_usr, usr_pos = self.get_token_pos(usr_utt_tok,
+                                                     value_label_variant)
+                if in_usr:
+                    break
+        return in_usr, usr_pos
+
+    def check_slot_referral(self, value_label, slot, seen_slots):
+        referred_slot = 'none'
+        if slot == 'hotel-stars' or slot == 'hotel-internet' or slot == 'hotel-parking':
+            return referred_slot
+        for s in seen_slots:
+            # Avoid matches for slots that share values with different meaning.
+            # hotel-internet and -parking are handled separately as Boolean slots.
+            if s == 'hotel-stars' or s == 'hotel-internet' or s == 'hotel-parking':
+                continue
+            if re.match('(hotel|restaurant)-book_people',
+                        s) and slot == 'hotel-book_stay':
+                continue
+            if re.match('(hotel|restaurant)-book_people',
+                        slot) and s == 'hotel-book_stay':
+                continue
+            if slot != s and (slot not in seen_slots
+                              or seen_slots[slot] != value_label):
+                if seen_slots[s] == value_label:
+                    referred_slot = s
+                    break
+                elif value_label in self.LABEL_MAPS:
+                    for value_label_variant in self.LABEL_MAPS[value_label]:
+                        if seen_slots[s] == value_label_variant:
+                            referred_slot = s
+                            break
+        return referred_slot
+
+    def is_in_list(self, tok, value):
+        found = False
+        tok_list = [
+            item for item in map(str.strip, re.split('(\W+)', tok))
+            if len(item) > 0
+        ]
+        value_list = [
+            item for item in map(str.strip, re.split('(\W+)', value))
+            if len(item) > 0
+        ]
+        tok_len = len(tok_list)
+        value_len = len(value_list)
+        for i in range(tok_len + 1 - value_len):
+            if tok_list[i:i + value_len] == value_list:
+                found = True
+                break
+        return found
+
+    # Fuzzy matching to label informed slot values
+    def check_slot_inform(self, value_label, inform_label):
+        result = False
+        informed_value = 'none'
+        vl = ' '.join(self.tokenize(value_label))
+        for il in inform_label:
+            if vl == il:
+                result = True
+            elif self.is_in_list(il, vl):
+                result = True
+            elif self.is_in_list(vl, il):
+                result = True
+            elif il in self.LABEL_MAPS:
+                for il_variant in self.LABEL_MAPS[il]:
+                    if vl == il_variant:
+                        result = True
+                        break
+                    elif self.is_in_list(il_variant, vl):
+                        result = True
+                        break
+                    elif self.is_in_list(vl, il_variant):
+                        result = True
+                        break
+            elif vl in self.LABEL_MAPS:
+                for value_label_variant in self.LABEL_MAPS[vl]:
+                    if value_label_variant == il:
+                        result = True
+                        break
+                    elif self.is_in_list(il, value_label_variant):
+                        result = True
+                        break
+                    elif self.is_in_list(value_label_variant, il):
+                        result = True
+                        break
+            if result:
+                informed_value = il
+                break
+        return result, informed_value
+
+    def get_turn_label(self, value_label, inform_label, sys_utt_tok,
+                       usr_utt_tok, slot, seen_slots, slot_last_occurrence):
+        usr_utt_tok_label = [0 for _ in usr_utt_tok]
+        informed_value = 'none'
+        referred_slot = 'none'
+        if value_label == 'none' or value_label == 'dontcare' or value_label == 'true' or value_label == 'false':
+            class_type = value_label
+        else:
+            in_usr, usr_pos = self.check_label_existence(
+                value_label, usr_utt_tok)
+            is_informed, informed_value = self.check_slot_inform(
+                value_label, inform_label)
+            if in_usr:
+                class_type = 'copy_value'
+                if slot_last_occurrence:
+                    (s, e) = usr_pos[-1]
+                    for i in range(s, e):
+                        usr_utt_tok_label[i] = 1
+                else:
+                    for (s, e) in usr_pos:
+                        for i in range(s, e):
+                            usr_utt_tok_label[i] = 1
+            elif is_informed:
+                class_type = 'inform'
+            else:
+                referred_slot = self.check_slot_referral(
+                    value_label, slot, seen_slots)
+                if referred_slot != 'none':
+                    class_type = 'refer'
+                else:
+                    class_type = 'unpointable'
+        return informed_value, referred_slot, usr_utt_tok_label, class_type
+
+    def _create_example(self,
+                        utterances,
+                        sys_inform_dict,
+                        set_type,
+                        slot_list,
+                        label_maps={},
+                        append_history=False,
+                        use_history_labels=False,
+                        swap_utterances=False,
+                        label_value_repetitions=False,
+                        delexicalize_sys_utts=False,
+                        unk_token='[UNK]',
+                        analyze=False,
+                        dialog_id='example.json'):
+
+        # Collects all slot changes throughout the dialog
+        cumulative_labels = {slot: 'none' for slot in slot_list}
+
+        # First system utterance is empty, since multiwoz starts with user input
+        utt_tok_list = [[]]
+        mod_slots_list = []
+
+        # Collect all utterances and their metadata
+        usr_sys_switch = True
+        turn_itr = 0
+
+        for utt in utterances:
+            # Assert that system and user utterances alternate
+            is_sys_utt = utt['metadata'] != {}
+            if usr_sys_switch == is_sys_utt:
+                print(
+                    'WARN: Wrong order of system and user utterances. Skipping rest of the dialog %s'
+                    % (dialog_id))
+                break
+            usr_sys_switch = is_sys_utt
+
+            if is_sys_utt:
+                turn_itr += 1
+
+            # Delexicalize sys utterance
+            if delexicalize_sys_utts and is_sys_utt:
+                inform_dict = {slot: 'none' for slot in slot_list}
+                for slot in slot_list:
+                    if (str(dialog_id), str(turn_itr),
+                            slot) in sys_inform_dict:
+                        inform_dict[slot] = sys_inform_dict[(str(dialog_id),
+                                                             str(turn_itr),
+                                                             slot)]
+                utt_tok_list.append(
+                    self.delex_utt(utt['text'], inform_dict,
+                                   unk_token))  # normalize utterances
+            else:
+                utt_tok_list.append(self.tokenize(
+                    utt['text']))  # normalize utterances
+
+            modified_slots = {}
+
+            # If sys utt, extract metadata (identify and collect modified slots)
+            if is_sys_utt:
+                for d in utt['metadata']:
+                    booked = utt['metadata'][d]['book']['booked']
+                    booked_slots = {}
+                    # Check the booked section
+                    if booked != []:
+                        for s in booked[0]:
+                            booked_slots[s] = self.normalize_label(
+                                '%s-%s' % (d, s),
+                                booked[0][s])  # normalize labels
+                    # Check the semi and the inform slots
+                    for category in ['book', 'semi']:
+                        for s in utt['metadata'][d][category]:
+                            cs = '%s-book_%s' % (
+                                d, s) if category == 'book' else '%s-%s' % (d,
+                                                                            s)
+                            value_label = self.normalize_label(
+                                cs, utt['metadata'][d][category]
+                                [s])  # normalize labels
+                            # Prefer the slot value as stored in the booked section
+                            if s in booked_slots:
+                                value_label = booked_slots[s]
+                            # Remember modified slots and entire dialog state
+                            if cs in slot_list and cumulative_labels[
+                                    cs] != value_label:
+                                modified_slots[cs] = value_label
+                                cumulative_labels[cs] = value_label
+
+            mod_slots_list.append(modified_slots.copy())
+
+        # Form proper (usr, sys) turns
+        turn_itr = 0
+        diag_seen_slots_dict = {}
+        diag_seen_slots_value_dict = {slot: 'none' for slot in slot_list}
+        diag_state = {slot: 'none' for slot in slot_list}
+        sys_utt_tok = []
+        usr_utt_tok = []
+        hst_utt_tok = []
+        hst_utt_tok_label_dict = {slot: [] for slot in slot_list}
+        new_hst_utt_tok_label_dict = hst_utt_tok_label_dict.copy()
+        new_diag_state = diag_state.copy()
+
+        for i in range(0, len(utt_tok_list) - 1, 2):
+            sys_utt_tok_label_dict = {}
+            usr_utt_tok_label_dict = {}
+            value_dict = {}
+            inform_dict = {}
+            inform_slot_dict = {}
+            referral_dict = {}
+            class_type_dict = {}
+
+            # Collect turn data
+            if append_history:
+                if swap_utterances:
+                    hst_utt_tok = usr_utt_tok + sys_utt_tok + hst_utt_tok
+                else:
+                    hst_utt_tok = sys_utt_tok + usr_utt_tok + hst_utt_tok
+            sys_utt_tok = utt_tok_list[i]
+            usr_utt_tok = utt_tok_list[i + 1]
+            turn_slots = mod_slots_list[
+                i + 1] if len(mod_slots_list) > 1 else {}
+
+            guid = '%s-%s-%s' % (set_type, str(dialog_id), str(turn_itr))
+
+            if analyze:
+                print('%15s %2s %s ||| %s' %
+                      (dialog_id, turn_itr, ' '.join(sys_utt_tok),
+                       ' '.join(usr_utt_tok)))
+                print('%15s %2s [' % (dialog_id, turn_itr), end='')
+
+            new_hst_utt_tok_label_dict = hst_utt_tok_label_dict.copy()
+            new_diag_state = diag_state.copy()
+            for slot in slot_list:
+                value_label = 'none'
+                if slot in turn_slots:
+                    value_label = turn_slots[slot]
+                    # We keep the original labels so as to not
+                    # overlook unpointable values, as well as to not
+                    # modify any of the original labels for test sets,
+                    # since this would make comparison difficult.
+                    value_dict[slot] = value_label
+                elif label_value_repetitions and slot in diag_seen_slots_dict:
+                    value_label = diag_seen_slots_value_dict[slot]
+
+                # Get dialog act annotations
+                inform_label = list(['none'])
+                inform_slot_dict[slot] = 0
+                if (str(dialog_id), str(turn_itr), slot) in sys_inform_dict:
+                    inform_label = list([
+                        self.normalize_label(slot, i)
+                        for i in sys_inform_dict[(str(dialog_id),
+                                                  str(turn_itr), slot)]
+                    ])
+                    inform_slot_dict[slot] = 1
+                elif (str(dialog_id), str(turn_itr),
+                      'booking-' + slot.split('-')[1]) in sys_inform_dict:
+                    inform_label = list([
+                        self.normalize_label(slot, i)
+                        for i in sys_inform_dict[(str(dialog_id),
+                                                  str(turn_itr), 'booking-'
+                                                  + slot.split('-')[1])]
+                    ])
+                    inform_slot_dict[slot] = 1
+
+                (informed_value, referred_slot, usr_utt_tok_label,
+                 class_type) = self.get_turn_label(
+                     value_label,
+                     inform_label,
+                     sys_utt_tok,
+                     usr_utt_tok,
+                     slot,
+                     diag_seen_slots_value_dict,
+                     slot_last_occurrence=True)
+
+                inform_dict[slot] = informed_value
+
+                # Generally don't use span prediction on sys utterance (but inform prediction instead).
+                sys_utt_tok_label = [0 for _ in sys_utt_tok]
+
+                # Determine what to do with value repetitions.
+                # If value is unique in seen slots, then tag it, otherwise not,
+                # since correct slot assignment can not be guaranteed anymore.
+                if label_value_repetitions and slot in diag_seen_slots_dict:
+                    if class_type == 'copy_value' and list(
+                            diag_seen_slots_value_dict.values()).count(
+                                value_label) > 1:
+                        class_type = 'none'
+                        usr_utt_tok_label = [0 for _ in usr_utt_tok_label]
+
+                sys_utt_tok_label_dict[slot] = sys_utt_tok_label
+                usr_utt_tok_label_dict[slot] = usr_utt_tok_label
+
+                if append_history:
+                    if use_history_labels:
+                        if swap_utterances:
+                            new_hst_utt_tok_label_dict[
+                                slot] = usr_utt_tok_label + sys_utt_tok_label + new_hst_utt_tok_label_dict[
+                                    slot]
+                        else:
+                            new_hst_utt_tok_label_dict[
+                                slot] = sys_utt_tok_label + usr_utt_tok_label + new_hst_utt_tok_label_dict[
+                                    slot]
+                    else:
+                        new_hst_utt_tok_label_dict[slot] = [
+                            0 for _ in sys_utt_tok_label + usr_utt_tok_label
+                            + new_hst_utt_tok_label_dict[slot]
+                        ]
+
+                # For now, we map all occurences of unpointable slot values
+                # to none. However, since the labels will still suggest
+                # a presence of unpointable slot values, the task of the
+                # DST is still to find those values. It is just not
+                # possible to do that via span prediction on the current input.
+                if class_type == 'unpointable':
+                    class_type_dict[slot] = 'none'
+                    referral_dict[slot] = 'none'
+                    if analyze:
+                        if slot not in diag_seen_slots_dict or value_label != diag_seen_slots_value_dict[
+                                slot]:
+                            print('(%s): %s, ' % (slot, value_label), end='')
+                elif slot in diag_seen_slots_dict and class_type == diag_seen_slots_dict[
+                        slot] and class_type != 'copy_value' and class_type != 'inform':
+                    # If slot has seen before and its class type did not change, label this slot a not present,
+                    # assuming that the slot has not actually been mentioned in this turn.
+                    # Exceptions are copy_value and inform. If a seen slot has been tagged as copy_value or inform,
+                    # this must mean there is evidence in the original labels, therefore consider
+                    # them as mentioned again.
+                    class_type_dict[slot] = 'none'
+                    referral_dict[slot] = 'none'
+                else:
+                    class_type_dict[slot] = class_type
+                    referral_dict[slot] = referred_slot
+                # Remember that this slot was mentioned during this dialog already.
+                if class_type != 'none':
+                    diag_seen_slots_dict[slot] = class_type
+                    diag_seen_slots_value_dict[slot] = value_label
+                    new_diag_state[slot] = class_type
+                    # Unpointable is not a valid class, therefore replace with
+                    # some valid class for now...
+                    if class_type == 'unpointable':
+                        new_diag_state[slot] = 'copy_value'
+
+            if analyze:
+                print(']')
+
+            if swap_utterances:
+                txt_a = usr_utt_tok
+                txt_b = sys_utt_tok
+                txt_a_lbl = usr_utt_tok_label_dict
+                txt_b_lbl = sys_utt_tok_label_dict
+            else:
+                txt_a = sys_utt_tok
+                txt_b = usr_utt_tok
+                txt_a_lbl = sys_utt_tok_label_dict
+                txt_b_lbl = usr_utt_tok_label_dict
+
+            example = DSTExample(
+                guid=guid,
+                text_a=txt_a,
+                text_b=txt_b,
+                history=hst_utt_tok,
+                text_a_label=txt_a_lbl,
+                text_b_label=txt_b_lbl,
+                history_label=hst_utt_tok_label_dict,
+                values=diag_seen_slots_value_dict.copy(),
+                inform_label=inform_dict,
+                inform_slot_label=inform_slot_dict,
+                refer_label=referral_dict,
+                diag_state=diag_state,
+                class_label=class_type_dict)
+        # Update some variables.
+        hst_utt_tok_label_dict = new_hst_utt_tok_label_dict.copy()
+        diag_state = new_diag_state.copy()
+
+        turn_itr += 1
+        return example
+
+    def create_example(self,
+                       inputs,
+                       history_states,
+                       set_type,
+                       slot_list,
+                       label_maps={},
+                       append_history=False,
+                       use_history_labels=False,
+                       swap_utterances=False,
+                       label_value_repetitions=False,
+                       delexicalize_sys_utts=False,
+                       unk_token='[UNK]',
+                       analyze=False,
+                       dialog_id='0'):
+        utterances = self._convert_inputs_to_utterances(inputs, history_states)
+        sys_inform_dict = self._load_acts(inputs)
+        self.LABEL_MAPS = label_maps
+        example = self._create_example(utterances, sys_inform_dict, set_type,
+                                       slot_list, label_maps, append_history,
+                                       use_history_labels, swap_utterances,
+                                       label_value_repetitions,
+                                       delexicalize_sys_utts, unk_token,
+                                       analyze)
+
+        return example
+
+    def create_examples(self,
+                        input_file,
+                        acts_file,
+                        set_type,
+                        slot_list,
+                        label_maps={},
+                        append_history=False,
+                        use_history_labels=False,
+                        swap_utterances=False,
+                        label_value_repetitions=False,
+                        delexicalize_sys_utts=False,
+                        unk_token='[UNK]',
+                        analyze=False):
+        """Read a DST json file into a list of DSTExample."""
+
+        sys_inform_dict = self.load_acts(acts_file)
+
+        with open(input_file, 'r', encoding='utf-8') as reader:
+            input_data = json.load(reader)
+
+        self.LABEL_MAPS = label_maps
+
+        examples = []
+        for dialog_id in tqdm(input_data):
+            entry = input_data[dialog_id]
+            utterances = entry['log']
+
+            example = self._create_example(
+                utterances, sys_inform_dict, set_type, slot_list, label_maps,
+                append_history, use_history_labels, swap_utterances,
+                label_value_repetitions, delexicalize_sys_utts, unk_token,
+                analyze)
+            examples.append(example)
+
+        return examples
+
+
+class DSTExample(object):
+    """
+    A single training/test example for the DST dataset.
+    """
+
+    def __init__(self,
+                 guid,
+                 text_a,
+                 text_b,
+                 history,
+                 text_a_label=None,
+                 text_b_label=None,
+                 history_label=None,
+                 values=None,
+                 inform_label=None,
+                 inform_slot_label=None,
+                 refer_label=None,
+                 diag_state=None,
+                 class_label=None):
+        self.guid = guid
+        self.text_a = text_a
+        self.text_b = text_b
+        self.history = history
+        self.text_a_label = text_a_label
+        self.text_b_label = text_b_label
+        self.history_label = history_label
+        self.values = values
+        self.inform_label = inform_label
+        self.inform_slot_label = inform_slot_label
+        self.refer_label = refer_label
+        self.diag_state = diag_state
+        self.class_label = class_label
+
+    def __str__(self):
+        return self.__repr__()
+
+    def __repr__(self):
+        s = ''
+        s += 'guid: %s' % (self.guid)
+        s += ', text_a: %s' % (self.text_a)
+        s += ', text_b: %s' % (self.text_b)
+        s += ', history: %s' % (self.history)
+        if self.text_a_label:
+            s += ', text_a_label: %d' % (self.text_a_label)
+        if self.text_b_label:
+            s += ', text_b_label: %d' % (self.text_b_label)
+        if self.history_label:
+            s += ', history_label: %d' % (self.history_label)
+        if self.values:
+            s += ', values: %d' % (self.values)
+        if self.inform_label:
+            s += ', inform_label: %d' % (self.inform_label)
+        if self.inform_slot_label:
+            s += ', inform_slot_label: %d' % (self.inform_slot_label)
+        if self.refer_label:
+            s += ', refer_label: %d' % (self.refer_label)
+        if self.diag_state:
+            s += ', diag_state: %d' % (self.diag_state)
+        if self.class_label:
+            s += ', class_label: %d' % (self.class_label)
+        return s
+
+
+class InputFeatures(object):
+    """A single set of features of data."""
+
+    def __init__(self,
+                 input_ids,
+                 input_ids_unmasked,
+                 input_mask,
+                 segment_ids,
+                 start_pos=None,
+                 end_pos=None,
+                 values=None,
+                 inform=None,
+                 inform_slot=None,
+                 refer_id=None,
+                 diag_state=None,
+                 class_label_id=None,
+                 guid='NONE'):
+        self.guid = guid
+        self.input_ids = input_ids
+        self.input_ids_unmasked = input_ids_unmasked
+        self.input_mask = input_mask
+        self.segment_ids = segment_ids
+        self.start_pos = start_pos
+        self.end_pos = end_pos
+        self.values = values
+        self.inform = inform
+        self.inform_slot = inform_slot
+        self.refer_id = refer_id
+        self.diag_state = diag_state
+        self.class_label_id = class_label_id
+
+
+def convert_examples_to_features(examples,
+                                 slot_list,
+                                 class_types,
+                                 model_type,
+                                 tokenizer,
+                                 max_seq_length,
+                                 slot_value_dropout=0.0):
+    """Loads a data file into a list of `InputBatch`s."""
+
+    if model_type == 'bert':
+        model_specs = {
+            'MODEL_TYPE': 'bert',
+            'CLS_TOKEN': '[CLS]',
+            'UNK_TOKEN': '[UNK]',
+            'SEP_TOKEN': '[SEP]',
+            'TOKEN_CORRECTION': 4
+        }
+    else:
+        logger.error('Unknown model type (%s). Aborting.' % (model_type))
+        exit(1)
+
+    def _tokenize_text_and_label(text, text_label_dict, slot, tokenizer,
+                                 model_specs, slot_value_dropout):
+        joint_text_label = [0 for _ in text_label_dict[slot]
+                            ]  # joint all slots' label
+        for slot_text_label in text_label_dict.values():
+            for idx, label in enumerate(slot_text_label):
+                if label == 1:
+                    joint_text_label[idx] = 1
+
+        text_label = text_label_dict[slot]
+        tokens = []
+        tokens_unmasked = []
+        token_labels = []
+        for token, token_label, joint_label in zip(text, text_label,
+                                                   joint_text_label):
+            token = convert_to_unicode(token)
+            sub_tokens = tokenizer.tokenize(token)  # Most time intensive step
+            tokens_unmasked.extend(sub_tokens)
+            if slot_value_dropout == 0.0 or joint_label == 0:
+                tokens.extend(sub_tokens)
+            else:
+                rn_list = np.random.random_sample((len(sub_tokens), ))
+                for rn, sub_token in zip(rn_list, sub_tokens):
+                    if rn > slot_value_dropout:
+                        tokens.append(sub_token)
+                    else:
+                        tokens.append(model_specs['UNK_TOKEN'])
+            token_labels.extend([token_label for _ in sub_tokens])
+        assert len(tokens) == len(token_labels)
+        assert len(tokens_unmasked) == len(token_labels)
+        return tokens, tokens_unmasked, token_labels
+
+    def _truncate_seq_pair(tokens_a, tokens_b, history, max_length):
+        """Truncates a sequence pair in place to the maximum length.
+        Copied from bert/run_classifier.py
+        """
+        # This is a simple heuristic which will always truncate the longer sequence
+        # one token at a time. This makes more sense than truncating an equal percent
+        # of tokens from each, since if one sequence is very short then each token
+        # that's truncated likely contains more information than a longer sequence.
+        while True:
+            total_length = len(tokens_a) + len(tokens_b) + len(history)
+            if total_length <= max_length:
+                break
+            if len(history) > 0:
+                history.pop()
+            elif len(tokens_a) > len(tokens_b):
+                tokens_a.pop()
+            else:
+                tokens_b.pop()
+
+    def _truncate_length_and_warn(tokens_a, tokens_b, history, max_seq_length,
+                                  model_specs, guid):
+        # Modifies `tokens_a` and `tokens_b` in place so that the total
+        # length is less than the specified length.
+        # Account for [CLS], [SEP], [SEP], [SEP] with "- 4" (BERT)
+        if len(tokens_a) + len(tokens_b) + len(
+                history) > max_seq_length - model_specs['TOKEN_CORRECTION']:
+            logger.info('Truncate Example %s. Total len=%d.' %
+                        (guid, len(tokens_a) + len(tokens_b) + len(history)))
+            input_text_too_long = True
+        else:
+            input_text_too_long = False
+        _truncate_seq_pair(tokens_a, tokens_b, history,
+                           max_seq_length - model_specs['TOKEN_CORRECTION'])
+        return input_text_too_long
+
+    def _get_token_label_ids(token_labels_a, token_labels_b,
+                             token_labels_history, max_seq_length,
+                             model_specs):
+        token_label_ids = []
+        token_label_ids.append(0)  # [CLS]
+        for token_label in token_labels_a:
+            token_label_ids.append(token_label)
+        token_label_ids.append(0)  # [SEP]
+        for token_label in token_labels_b:
+            token_label_ids.append(token_label)
+        token_label_ids.append(0)  # [SEP]
+        for token_label in token_labels_history:
+            token_label_ids.append(token_label)
+        token_label_ids.append(0)  # [SEP]
+        while len(token_label_ids) < max_seq_length:
+            token_label_ids.append(0)  # padding
+        assert len(token_label_ids) == max_seq_length
+        return token_label_ids
+
+    def _get_start_end_pos(class_type, token_label_ids, max_seq_length):
+        if class_type == 'copy_value' and 1 not in token_label_ids:
+            #logger.warn("copy_value label, but token_label not detected. Setting label to 'none'.")
+            class_type = 'none'
+        start_pos = 0
+        end_pos = 0
+        if 1 in token_label_ids:
+            start_pos = token_label_ids.index(1)
+            # Parsing is supposed to find only first location of wanted value
+            if 0 not in token_label_ids[start_pos:]:
+                end_pos = len(token_label_ids[start_pos:]) + start_pos - 1
+            else:
+                end_pos = token_label_ids[start_pos:].index(0) + start_pos - 1
+            for i in range(max_seq_length):
+                if i >= start_pos and i <= end_pos:
+                    assert token_label_ids[i] == 1
+        return class_type, start_pos, end_pos
+
+    def _get_transformer_input(tokens_a, tokens_b, history, max_seq_length,
+                               tokenizer, model_specs):
+        # The convention in BERT is:
+        # (a) For sequence pairs:
+        #  tokens:   [CLS] is this jack ##son ##ville ? [SEP] no it is not . [SEP]
+        #  type_ids: 0     0  0    0    0     0       0 0     1  1  1  1   1 1
+        # (b) For single sequences:
+        #  tokens:   [CLS] the dog is hairy . [SEP]
+        #  type_ids: 0     0   0   0  0     0 0
+        #
+        # Where "type_ids" are used to indicate whether this is the first
+        # sequence or the second sequence. The embedding vectors for `type=0` and
+        # `type=1` were learned during pre-training and are added to the wordpiece
+        # embedding vector (and position vector). This is not *strictly* necessary
+        # since the [SEP] token unambiguously separates the sequences, but it makes
+        # it easier for the model to learn the concept of sequences.
+        #
+        # For classification tasks, the first vector (corresponding to [CLS]) is
+        # used as the "sentence vector". Note that this only makes sense because
+        # the entire model is fine-tuned.
+        tokens = []
+        segment_ids = []
+        tokens.append(model_specs['CLS_TOKEN'])
+        segment_ids.append(0)
+        for token in tokens_a:
+            tokens.append(token)
+            segment_ids.append(0)
+        tokens.append(model_specs['SEP_TOKEN'])
+        segment_ids.append(0)
+        for token in tokens_b:
+            tokens.append(token)
+            segment_ids.append(1)
+        tokens.append(model_specs['SEP_TOKEN'])
+        segment_ids.append(1)
+        for token in history:
+            tokens.append(token)
+            segment_ids.append(1)
+        tokens.append(model_specs['SEP_TOKEN'])
+        segment_ids.append(1)
+        input_ids = tokenizer.convert_tokens_to_ids(tokens)
+        # The mask has 1 for real tokens and 0 for padding tokens. Only real
+        # tokens are attended to.
+        input_mask = [1] * len(input_ids)
+        # Zero-pad up to the sequence length.
+        while len(input_ids) < max_seq_length:
+            input_ids.append(0)
+            input_mask.append(0)
+            segment_ids.append(0)
+        assert len(input_ids) == max_seq_length
+        assert len(input_mask) == max_seq_length
+        assert len(segment_ids) == max_seq_length
+        return tokens, input_ids, input_mask, segment_ids
+
+    total_cnt = 0
+    too_long_cnt = 0
+
+    refer_list = ['none'] + slot_list
+
+    features = []
+    # Convert single example
+    for (example_index, example) in enumerate(examples):
+        if example_index % 1000 == 0:
+            logger.info('Writing example %d of %d' %
+                        (example_index, len(examples)))
+
+        total_cnt += 1
+
+        value_dict = {}
+        inform_dict = {}
+        inform_slot_dict = {}
+        refer_id_dict = {}
+        diag_state_dict = {}
+        class_label_id_dict = {}
+        start_pos_dict = {}
+        end_pos_dict = {}
+        for slot in slot_list:
+            tokens_a, tokens_a_unmasked, token_labels_a = _tokenize_text_and_label(
+                example.text_a, example.text_a_label, slot, tokenizer,
+                model_specs, slot_value_dropout)
+            tokens_b, tokens_b_unmasked, token_labels_b = _tokenize_text_and_label(
+                example.text_b, example.text_b_label, slot, tokenizer,
+                model_specs, slot_value_dropout)
+            tokens_history, tokens_history_unmasked, token_labels_history = _tokenize_text_and_label(
+                example.history, example.history_label, slot, tokenizer,
+                model_specs, slot_value_dropout)
+
+            input_text_too_long = _truncate_length_and_warn(
+                tokens_a, tokens_b, tokens_history, max_seq_length,
+                model_specs, example.guid)
+
+            if input_text_too_long:
+                if example_index < 10:
+                    if len(token_labels_a) > len(tokens_a):
+                        logger.info('    tokens_a truncated labels: %s'
+                                    % str(token_labels_a[len(tokens_a):]))
+                    if len(token_labels_b) > len(tokens_b):
+                        logger.info('    tokens_b truncated labels: %s'
+                                    % str(token_labels_b[len(tokens_b):]))
+                    if len(token_labels_history) > len(tokens_history):
+                        logger.info(
+                            '    tokens_history truncated labels: %s'
+                            % str(token_labels_history[len(tokens_history):]))
+
+                token_labels_a = token_labels_a[:len(tokens_a)]
+                token_labels_b = token_labels_b[:len(tokens_b)]
+                token_labels_history = token_labels_history[:len(tokens_history
+                                                                 )]
+                tokens_a_unmasked = tokens_a_unmasked[:len(tokens_a)]
+                tokens_b_unmasked = tokens_b_unmasked[:len(tokens_b)]
+                tokens_history_unmasked = tokens_history_unmasked[:len(
+                    tokens_history)]
+
+            assert len(token_labels_a) == len(tokens_a)
+            assert len(token_labels_b) == len(tokens_b)
+            assert len(token_labels_history) == len(tokens_history)
+            assert len(token_labels_a) == len(tokens_a_unmasked)
+            assert len(token_labels_b) == len(tokens_b_unmasked)
+            assert len(token_labels_history) == len(tokens_history_unmasked)
+            token_label_ids = _get_token_label_ids(token_labels_a,
+                                                   token_labels_b,
+                                                   token_labels_history,
+                                                   max_seq_length, model_specs)
+
+            value_dict[slot] = example.values[slot]
+            inform_dict[slot] = example.inform_label[slot]
+
+            class_label_mod, start_pos_dict[slot], end_pos_dict[
+                slot] = _get_start_end_pos(example.class_label[slot],
+                                           token_label_ids, max_seq_length)
+            if class_label_mod != example.class_label[slot]:
+                example.class_label[slot] = class_label_mod
+            inform_slot_dict[slot] = example.inform_slot_label[slot]
+            refer_id_dict[slot] = refer_list.index(example.refer_label[slot])
+            diag_state_dict[slot] = class_types.index(example.diag_state[slot])
+            class_label_id_dict[slot] = class_types.index(
+                example.class_label[slot])
+
+        if input_text_too_long:
+            too_long_cnt += 1
+
+        tokens, input_ids, input_mask, segment_ids = _get_transformer_input(
+            tokens_a, tokens_b, tokens_history, max_seq_length, tokenizer,
+            model_specs)
+        if slot_value_dropout > 0.0:
+            _, input_ids_unmasked, _, _ = _get_transformer_input(
+                tokens_a_unmasked, tokens_b_unmasked, tokens_history_unmasked,
+                max_seq_length, tokenizer, model_specs)
+        else:
+            input_ids_unmasked = input_ids
+
+        assert (len(input_ids) == len(input_ids_unmasked))
+
+        if example_index < 10:
+            logger.info('*** Example ***')
+            logger.info('guid: %s' % (example.guid))
+            logger.info('tokens: %s' % ' '.join(tokens))
+            logger.info('input_ids: %s' % ' '.join([str(x)
+                                                    for x in input_ids]))
+            logger.info('input_mask: %s'
+                        % ' '.join([str(x) for x in input_mask]))
+            logger.info('segment_ids: %s'
+                        % ' '.join([str(x) for x in segment_ids]))
+            logger.info('start_pos: %s' % str(start_pos_dict))
+            logger.info('end_pos: %s' % str(end_pos_dict))
+            logger.info('values: %s' % str(value_dict))
+            logger.info('inform: %s' % str(inform_dict))
+            logger.info('inform_slot: %s' % str(inform_slot_dict))
+            logger.info('refer_id: %s' % str(refer_id_dict))
+            logger.info('diag_state: %s' % str(diag_state_dict))
+            logger.info('class_label_id: %s' % str(class_label_id_dict))
+
+        features.append(
+            InputFeatures(
+                guid=example.guid,
+                input_ids=input_ids,
+                input_ids_unmasked=input_ids_unmasked,
+                input_mask=input_mask,
+                segment_ids=segment_ids,
+                start_pos=start_pos_dict,
+                end_pos=end_pos_dict,
+                values=value_dict,
+                inform=inform_dict,
+                inform_slot=inform_slot_dict,
+                refer_id=refer_id_dict,
+                diag_state=diag_state_dict,
+                class_label_id=class_label_id_dict))
+
+    logger.info('========== %d out of %d examples have text too long' %
+                (too_long_cnt, total_cnt))
+
+    return features
+
+
+# From bert.tokenization (TF code)
+def convert_to_unicode(text):
+    """Converts `text` to Unicode (if it's not already), assuming utf-8 input."""
+    if six.PY3:
+        if isinstance(text, str):
+            return text
+        elif isinstance(text, bytes):
+            return text.decode('utf-8', 'ignore')
+        else:
+            raise ValueError('Unsupported string type: %s' % (type(text)))
+    elif six.PY2:
+        if isinstance(text, str):
+            return text.decode('utf-8', 'ignore')
+        elif isinstance(text, unicode):
+            return text
+        else:
+            raise ValueError('Unsupported string type: %s' % (type(text)))
+    else:
+        raise ValueError('Not running on Python2 or Python 3?')
+
+
+if __name__ == '__main__':
+    processor = multiwoz22Processor()
+    set_type = 'test'
+    slot_list = [
+        'taxi-leaveAt', 'taxi-destination', 'taxi-departure', 'taxi-arriveBy',
+        'restaurant-book_people', 'restaurant-book_day',
+        'restaurant-book_time', 'restaurant-food', 'restaurant-pricerange',
+        'restaurant-name', 'restaurant-area', 'hotel-book_people',
+        'hotel-book_day', 'hotel-book_stay', 'hotel-name', 'hotel-area',
+        'hotel-parking', 'hotel-pricerange', 'hotel-stars', 'hotel-internet',
+        'hotel-type', 'attraction-type', 'attraction-name', 'attraction-area',
+        'train-book_people', 'train-leaveAt', 'train-destination', 'train-day',
+        'train-arriveBy', 'train-departure'
+    ]
+    append_history = True
+    use_history_labels = True
+    swap_utterances = True
+    label_value_repetitions = True
+    delexicalize_sys_utts = True,
+    unk_token = '[UNK]'
+    analyze = False
+    example = processor.create_example(utter1, history_states1, set_type,
+                                       slot_list, {}, append_history,
+                                       use_history_labels, swap_utterances,
+                                       label_value_repetitions,
+                                       delexicalize_sys_utts, unk_token,
+                                       analyze)
+    print(f'utterances is {example}')
diff --git a/modelscope/preprocessors/space/fields/gen_field.py b/modelscope/preprocessors/space/fields/gen_field.py
new file mode 100644
index 00000000..7012697f
--- /dev/null
+++ b/modelscope/preprocessors/space/fields/gen_field.py
@@ -0,0 +1,687 @@
+"""
+Field class
+"""
+import os
+import random
+from collections import OrderedDict
+from itertools import chain
+
+import numpy as np
+
+from modelscope.preprocessors.space.tokenizer import Tokenizer
+from modelscope.utils.nlp.space import ontology, utils
+from modelscope.utils.nlp.space.db_ops import MultiWozDB
+from modelscope.utils.nlp.space.utils import list2np
+
+
+class BPETextField(object):
+
+    pad_token = '[PAD]'
+    bos_token = '[BOS]'
+    eos_token = '[EOS]'
+    unk_token = '[UNK]'
+    sos_u_token = '<sos_u>'
+    eos_u_token = '<eos_u>'
+    sos_b_token = '<sos_b>'
+    eos_b_token = '<eos_b>'
+    sos_d_token = '<sos_d>'
+    eos_d_token = '<eos_d>'
+    sos_a_token = '<sos_a>'
+    eos_a_token = '<eos_a>'
+    sos_db_token = '<sos_db>'
+    eos_db_token = '<eos_db>'
+    sos_r_token = '<sos_r>'
+    eos_r_token = '<eos_r>'
+
+    @property
+    def bot_id(self):
+        """
+        用于区分user和bot两个角色
+        1和0不是词表中的index，而是专门针对role的index，大小就为2，对应超参数'num_type_embeddings'
+        """
+        return 0
+
+    @property
+    def user_id(self):
+        """
+        用于区分user和bot两个角色
+        1和0不是词表中的index，而是专门针对role的index，大小就为2，对应超参数'num_type_embeddings'
+        """
+        return 1
+
+    @property
+    def vocab_size(self):
+        return self.tokenizer.vocab_size
+
+    @property
+    def num_specials(self):
+        return len(self.tokenizer.special_tokens)
+
+    @property
+    def pad_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.pad_token])[0]
+
+    @property
+    def bos_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.bos_token])[0]
+
+    @property
+    def eos_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.eos_token])[0]
+
+    @property
+    def unk_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.unk_token])[0]
+
+    @property
+    def sos_u_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.sos_u_token])[0]
+
+    @property
+    def eos_u_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.eos_u_token])[0]
+
+    @property
+    def sos_b_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.sos_b_token])[0]
+
+    @property
+    def eos_b_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.eos_b_token])[0]
+
+    @property
+    def sos_db_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.sos_db_token])[0]
+
+    @property
+    def eos_db_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.eos_db_token])[0]
+
+    @property
+    def sos_a_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.sos_a_token])[0]
+
+    @property
+    def eos_a_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.eos_a_token])[0]
+
+    @property
+    def sos_r_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.sos_r_token])[0]
+
+    @property
+    def eos_r_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.eos_r_token])[0]
+
+    @property
+    def sos_d_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.sos_d_token])[0]
+
+    @property
+    def eos_d_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.eos_d_token])[0]
+
+    def __init__(self, config):
+        self.gpu = 0
+        self.tokenizer = None
+        self.vocab = None
+        self.db = None
+        self.set_stats = {}
+
+        self.prompt_num_for_understand = config.BPETextField.prompt_num_for_understand
+        self.prompt_num_for_policy = config.BPETextField.prompt_num_for_policy
+        self.understand_tokens = ontology.get_understand_tokens(
+            self.prompt_num_for_understand)
+        self.policy_tokens = ontology.get_policy_tokens(
+            self.prompt_num_for_policy)
+
+        self.with_query_bow = config.BPETextField.with_query_bow
+        self.understand = config.BPETextField.understand
+        self.policy = config.BPETextField.policy
+
+        self.batch_size = config.Trainer.batch_size
+        self.filtered = config.BPETextField.filtered
+        self.max_len = config.BPETextField.max_len
+        self.min_utt_len = config.BPETextField.min_utt_len
+        self.max_utt_len = config.BPETextField.max_utt_len
+        self.min_ctx_turn = config.BPETextField.min_ctx_turn
+        self.max_ctx_turn = config.BPETextField.max_ctx_turn - 1  # subtract reply turn
+
+        self.use_true_prev_bspn = config.Generator.use_true_prev_bspn
+        self.use_true_prev_aspn = config.Generator.use_true_prev_aspn
+        self.use_true_db_pointer = config.Generator.use_true_db_pointer
+        self.use_true_prev_resp = config.Generator.use_true_prev_resp
+        self.use_true_curr_bspn = config.Generator.use_true_curr_bspn
+        self.use_true_curr_aspn = config.Generator.use_true_curr_aspn
+        self.use_all_previous_context = config.Generator.use_all_previous_context
+        self.use_true_bspn_for_ctr_eval = config.Generator.use_true_bspn_for_ctr_eval
+        self.use_true_domain_for_ctr_eval = config.Generator.use_true_domain_for_ctr_eval
+
+    def collate_fn_multi_turn(self, samples):
+        batch_size = len(samples)
+        batch = {}
+
+        src = [sp['src'][-self.max_ctx_turn:] for sp in samples]
+        query_token, src_token, src_pos, src_turn, src_role = [], [], [], [], []
+        for utts in src:
+            query_token.append(utts[-1])
+            utt_lens = [len(utt) for utt in utts]
+
+            # Token ids
+            src_token.append(list(chain(*utts))[-self.max_len:])
+
+            # Position ids
+            pos = [list(range(utt_len)) for utt_len in utt_lens]
+            src_pos.append(list(chain(*pos))[-self.max_len:])
+
+            # Turn ids
+            turn = [[len(utts) - i] * l for i, l in enumerate(utt_lens)]
+            src_turn.append(list(chain(*turn))[-self.max_len:])
+
+            # Role ids
+            role = [
+                [self.bot_id if (len(utts) - i) % 2 == 0 else self.user_id] * l
+                for i, l in enumerate(utt_lens)
+            ]
+            src_role.append(list(chain(*role))[-self.max_len:])
+
+        # src端序列和tgt端序列需要分开pad，以保证解码时第一个词对齐
+        src_token = list2np(src_token, padding=self.pad_id)
+        src_pos = list2np(src_pos, padding=self.pad_id)
+        src_turn = list2np(src_turn, padding=self.pad_id)
+        src_role = list2np(src_role, padding=self.pad_id)
+        batch['src_token'] = src_token
+        batch['src_pos'] = src_pos
+        batch['src_type'] = src_role
+        batch['src_turn'] = src_turn
+        batch['src_mask'] = (src_token != self.pad_id).astype('int64')
+
+        if self.with_query_bow:
+            query_token = list2np(query_token, padding=self.pad_id)
+            batch['query_token'] = query_token
+            batch['query_mask'] = (query_token != self.pad_id).astype('int64')
+
+        if self.understand_ids and self.understand:
+            understand = [self.understand_ids for _ in samples]
+            understand_token = np.array(understand).astype('int64')
+            batch['understand_token'] = understand_token
+            batch['understand_mask'] = \
+                (understand_token != self.pad_id).astype('int64')
+
+        if self.policy_ids and self.policy:
+            policy = [self.policy_ids for _ in samples]
+            policy_token = np.array(policy).astype('int64')
+            batch['policy_token'] = policy_token
+            batch['policy_mask'] = \
+                (policy_token != self.pad_id).astype('int64')
+
+        if 'tgt' in samples[0]:
+            tgt = [sp['tgt'] for sp in samples]
+
+            # Token ids & Label ids
+            tgt_token = list2np(tgt, padding=self.pad_id)
+
+            # Position ids
+            tgt_pos = np.zeros_like(tgt_token)
+            tgt_pos[:] = np.arange(tgt_token.shape[1], dtype=tgt_token.dtype)
+
+            # Turn ids
+            tgt_turn = np.zeros_like(tgt_token)
+
+            # Role ids
+            tgt_role = np.full_like(tgt_token, self.bot_id)
+
+            batch['tgt_token'] = tgt_token
+            batch['tgt_pos'] = tgt_pos
+            batch['tgt_type'] = tgt_role
+            batch['tgt_turn'] = tgt_turn
+            batch['tgt_mask'] = (tgt_token != self.pad_id).astype('int64')
+
+        return batch, batch_size
+
+    def _bucket_by_turn(self, encoded_data):
+        turn_bucket = {}
+        for dial in encoded_data:
+            turn_len = len(dial)
+            if turn_len not in turn_bucket:
+                turn_bucket[turn_len] = []
+            turn_bucket[turn_len].append(dial)
+        return OrderedDict(sorted(turn_bucket.items(), key=lambda i: i[0]))
+
+    def _construct_mini_batch(self, data):
+        all_batches = []
+        batch = []
+        for dial in data:
+            batch.append(dial)
+            if len(batch) == self.batch_size:
+                # print('batch size: %d, batch num +1'%(len(batch)))
+                all_batches.append(batch)
+                batch = []
+        # if remainder > 1/2 batch_size, just put them in the previous batch, otherwise form a new batch
+        # print('last batch size: %d, batch num +1'%(len(batch)))
+        # if (len(batch) % len(cfg.cuda_device)) != 0:
+        #     batch = batch[:-(len(batch) % len(cfg.cuda_device))]
+        # TODO deal with deleted data
+        if self.gpu <= 1:
+            if len(batch) > 0.5 * self.batch_size:
+                all_batches.append(batch)
+            elif len(all_batches):
+                all_batches[-1].extend(batch)
+            else:
+                all_batches.append(batch)
+
+        return all_batches
+
+    def transpose_batch(self, batch):
+        dial_batch = []
+        turn_num = len(batch[0])
+        for turn in range(turn_num):
+            turn_l = {}
+            for dial in batch:
+                this_turn = dial[turn]
+                for k in this_turn:
+                    if k not in turn_l:
+                        turn_l[k] = []
+                    turn_l[k].append(this_turn[k])
+            dial_batch.append(turn_l)
+        return dial_batch
+
+    def get_eval_data(self, set_name='dev'):
+        name_to_set = {'train': self.train, 'test': self.test, 'dev': self.dev}
+        dial = name_to_set[set_name]
+
+        if set_name not in self.set_stats:
+            self.set_stats[set_name] = {}
+        num_turns = 0
+        num_dials = len(dial)
+        for d in dial:
+            num_turns += len(d)
+
+        self.set_stats[set_name]['num_turns'] = num_turns
+        self.set_stats[set_name]['num_dials'] = num_dials
+
+        return dial
+
+    def get_nontranspose_data_iterator(self, all_batches):
+        for i, batch in enumerate(all_batches):
+            yield batch
+
+    def get_data_iterator(self, all_batches):
+        for i, batch in enumerate(all_batches):
+            yield self.transpose_batch(batch)
+
+
+class MultiWOZBPETextField(BPETextField):
+
+    def __init__(self, model_dir, config):
+        super(MultiWOZBPETextField, self).__init__(config)
+        import spacy
+        self.nlp = spacy.load('en_core_web_sm')
+
+        self.db = MultiWozDB(
+            model_dir, {
+                'attraction': 'db/attraction_db_processed.json',
+                'hospital': 'db/hospital_db_processed.json',
+                'hotel': 'db/hotel_db_processed.json',
+                'police': 'db/police_db_processed.json',
+                'restaurant': 'db/restaurant_db_processed.json',
+                'taxi': 'db/taxi_db_processed.json',
+                'train': 'db/train_db_processed.json',
+            })
+        self._build_vocab(model_dir)
+
+        special_tokens = [
+            self.pad_token, self.bos_token, self.eos_token, self.unk_token
+        ]
+        special_tokens.extend(self.add_sepcial_tokens())
+        self.tokenizer = Tokenizer(
+            vocab_path=os.path.join(model_dir, 'vocab.txt'),
+            special_tokens=special_tokens,
+            tokenizer_type=config.BPETextField.tokenizer_type)
+        self.understand_ids = self.tokenizer.convert_tokens_to_ids(
+            self.understand_tokens)
+        self.policy_ids = self.tokenizer.convert_tokens_to_ids(
+            self.policy_tokens)
+
+        return
+
+    def get_ids(self, data: str):
+        result = [self.sos_u_id] + self.tokenizer.convert_tokens_to_ids(
+            self.tokenizer.tokenize(
+                self._get_convert_str(data))) + [self.eos_u_id]
+        return result
+
+    def inverse_transpose_turn(self, turn_list):
+        """
+        eval, one dialog at a time
+        """
+        dialogs = {}
+        turn_num = len(turn_list)
+        dial_id = turn_list[0]['dial_id']
+        dialogs[dial_id] = []
+        for turn_idx in range(turn_num):
+            dial_turn = {}
+            turn = turn_list[turn_idx]
+            for key, value in turn.items():
+                if key == 'dial_id':
+                    continue
+                if key == 'pointer' and self.db is not None:
+                    turn_domain = turn['turn_domain'][-1]
+                    value = self.db.pointerBack(value, turn_domain)
+                dial_turn[key] = value
+            dialogs[dial_id].append(dial_turn)
+        return dialogs
+
+    def inverse_transpose_batch(self, turn_batch_list):
+        """
+        :param turn_batch_list: list of transpose dial batch
+        """
+        dialogs = {}
+        total_turn_num = len(turn_batch_list)
+        # initialize
+        for idx_in_batch, dial_id in enumerate(turn_batch_list[0]['dial_id']):
+            dialogs[dial_id] = []
+            for turn_n in range(total_turn_num):
+                dial_turn = {}
+                turn_batch = turn_batch_list[turn_n]
+                for key, v_list in turn_batch.items():
+                    if key == 'dial_id':
+                        continue
+                    value = v_list[idx_in_batch]
+                    if key == 'pointer' and self.db is not None:
+                        turn_domain = turn_batch['turn_domain'][idx_in_batch][
+                            -1]
+                        value = self.db.pointerBack(value, turn_domain)
+                    dial_turn[key] = value
+                dialogs[dial_id].append(dial_turn)
+        return dialogs
+
+    def get_batches(self, set_name):
+        """
+        compute dataset stats.
+        """
+        global dia_count
+        log_str = ''
+        name_to_set = {'train': self.train, 'test': self.test, 'dev': self.dev}
+        dial = name_to_set[set_name]
+        turn_bucket = self._bucket_by_turn(dial)
+        # self._shuffle_turn_bucket(turn_bucket)
+        all_batches = []
+
+        if set_name not in self.set_stats:
+            self.set_stats[set_name] = {}
+        num_training_steps = 0
+        num_turns = 0
+        num_dials = 0
+
+        for k in turn_bucket:
+            if set_name != 'test' and k == 1 or k >= 17:
+                continue
+            batches = self._construct_mini_batch(turn_bucket[k])
+            try:
+                log_str += 'turn num:%d, dial num: %d, batch num: %d last batch len: %d\n' % (
+                    k, len(turn_bucket[k]), len(batches), len(batches[-1]))
+            except Exception:
+                log_str += 'turn num:%d, dial num: %d, batch num: %d last batch len: %d\n' % (
+                    k, len(turn_bucket[k]), len(batches), 0.0)
+            # print("turn num:%d, dial num:v%d, batch num: %d, "%(k, len(turn_bucket[k]), len(batches)))
+            num_training_steps += k * len(batches)
+            num_turns += k * len(turn_bucket[k])
+            num_dials += len(turn_bucket[k])
+            all_batches += batches
+        log_str += 'total batch num: %d\n' % len(all_batches)
+        # print('total batch num: %d'%len(all_batches))
+        # print('dialog count: %d'%dia_count)
+        # return all_batches
+
+        # log stats
+        # logging.info(log_str)
+        # cfg.num_training_steps = num_training_steps * cfg.epoch_num
+        self.set_stats[set_name][
+            'num_training_steps_per_epoch'] = num_training_steps  # turn-level的steps
+        self.set_stats[set_name]['num_turns'] = num_turns
+        self.set_stats[set_name]['num_dials'] = num_dials
+
+        if set_name == 'train':
+            random.shuffle(all_batches)
+        return all_batches
+
+    def add_sepcial_tokens(self):
+        """
+            add special tokens to gpt tokenizer
+            serves a similar role of Vocab.construt()
+            make a dict of special tokens
+        """
+        special_tokens = []
+        prompt_tokens = self.understand_tokens + self.policy_tokens
+        special_tokens.extend(
+            ontology.get_special_tokens(other_tokens=prompt_tokens))
+
+        for word in ontology.all_domains + ['general']:
+            word = '[' + word + ']'
+            special_tokens.append(word)
+        for word in ontology.all_acts:
+            word = '[' + word + ']'
+            special_tokens.append(word)
+        for word in self.vocab._word2idx.keys():
+            if word.startswith('[value_') and word.endswith(']'):
+                special_tokens.append(word)
+
+        return special_tokens
+
+    def _build_vocab(self, model_dir: str):
+        self.vocab = utils.MultiWOZVocab(3000)
+        vp = os.path.join('{}/vocab'.format(model_dir))
+        self.vocab.load_vocab(vp)
+        return self.vocab.vocab_size
+
+    def _get_convert_str(self, sent):
+        assert isinstance(sent, str)
+        return ' '.join([
+            self.tokenizer.spec_convert_dict.get(tok, tok)
+            for tok in sent.split()
+        ])
+
+    def bspan_to_DBpointer(self, bspan, turn_domain):
+        constraint_dict = self.bspan_to_constraint_dict(bspan)
+        # print(constraint_dict)
+        matnums = self.db.get_match_num(constraint_dict)
+        match_dom = turn_domain[0] if len(turn_domain) == 1 else turn_domain[1]
+        match_dom = match_dom[1:-1] if match_dom.startswith('[') else match_dom
+        match = matnums[match_dom]
+        # vector = self.db.addDBPointer(match_dom, match)
+        vector = self.db.addDBIndicator(match_dom, match)
+        return vector
+
+    def bspan_to_constraint_dict(self, bspan, bspn_mode='bspn'):
+        """
+        ['[hotel]', 'pricerange', 'cheap', 'type', 'hotel'] -> {'hotel': {'pricerange': 'cheap', 'type': 'hotel'}}
+        """
+        bspan = bspan.split() if isinstance(bspan, str) else bspan
+        constraint_dict = {}
+        domain = None
+        conslen = len(bspan)
+        for idx, cons in enumerate(bspan):
+            cons = self.vocab.decode(cons) if type(cons) is not str else cons
+            if cons == '<eos_b>':
+                break
+            if '[' in cons:
+                if cons[1:-1] not in ontology.all_domains:
+                    continue
+                domain = cons[1:-1]
+            elif cons in ontology.get_slot:
+                if domain is None:
+                    continue
+                if cons == 'people':
+                    # handle confusion of value name "people's portraits..." and slot people
+                    try:
+                        ns = bspan[idx + 1]
+                        ns = self.vocab.decode(ns) if type(
+                            ns) is not str else ns
+                        if ns == "'s":
+                            continue
+                    except Exception:
+                        continue
+                if not constraint_dict.get(domain):
+                    constraint_dict[domain] = {}
+                if bspn_mode == 'bsdx':
+                    constraint_dict[domain][cons] = 1
+                    continue
+                vidx = idx + 1
+                if vidx == conslen:
+                    break
+                vt_collect = []
+                vt = bspan[vidx]
+                vt = self.vocab.decode(vt) if type(vt) is not str else vt
+                while vidx < conslen and vt != '<eos_b>' and '[' not in vt and vt not in ontology.get_slot:
+                    vt_collect.append(vt)
+                    vidx += 1
+                    if vidx == conslen:
+                        break
+                    vt = bspan[vidx]
+                    vt = self.vocab.decode(vt) if type(vt) is not str else vt
+                if vt_collect:
+                    constraint_dict[domain][cons] = ' '.join(vt_collect)
+
+        return constraint_dict
+
+    def convert_batch_turn(self, turn_batch, pv_batch, first_turn=False):
+        """
+        URURU：这里的含义是指轮级别的训练（数据整理），区别于session级别的训练方式（convert_batch_session）；
+        但不同于eval时的含义，eval时二者都是逐轮依次生成的，那时URURU的含义请见相关的函数注释；
+
+        convert the current and the last turn
+        concat [U_0,R_0,...,U_{t-1}, R_{t-1}, U_t, B_t, A_t, R_t]
+        firts turn: [U_t, B_t, A_t, R_t]
+        try: [user, bspn, db, aspn, resp]
+
+        """
+        inputs = []
+        if first_turn:
+            batch_zipped = zip(turn_batch['user'], turn_batch['bspn'],
+                               turn_batch['db'], turn_batch['aspn'],
+                               turn_batch['resp'])
+            for u, b, db, a, r in batch_zipped:
+                if self.use_true_curr_bspn:
+                    src = [u + b + db]
+                    tgt = a + r
+                else:
+                    src = [u]
+                    tgt = b + db + a + r
+                inputs.append({'src': src, 'tgt': tgt})
+                pv = [src[-1], tgt]
+                pv_batch.append(pv)
+        else:
+            batch_zipped = zip(pv_batch, turn_batch['user'],
+                               turn_batch['bspn'], turn_batch['db'],
+                               turn_batch['aspn'], turn_batch['resp'])
+            for i, (pv, u, b, db, a, r) in enumerate(batch_zipped):
+                if self.use_true_curr_bspn:
+                    src = pv + [u + b + db]
+                    tgt = a + r
+                else:
+                    src = pv + [u]
+                    tgt = b + db + a + r
+                inputs.append({'src': src, 'tgt': tgt})
+                pv = [src[-1], tgt]
+                pv_batch[i].extend(pv)
+
+        return inputs, pv_batch
+
+    def wrap_result_lm(self, result_dict, eos_syntax=None):
+        results = []
+        eos_syntax = ontology.eos_tokens if not eos_syntax else eos_syntax
+        sos_syntax = ontology.sos_tokens
+        # ground truth bs, as, ds.. generate response
+        field = [
+            'dial_id', 'turn_num', 'user', 'bspn_gen', 'bsdx', 'resp_gen',
+            'resp', 'aspn_gen', 'aspn', 'dspn_gen', 'dspn', 'bspn', 'pointer',
+            'qspn_gen', 'qspn'
+        ]
+
+        for dial_id, turns in result_dict.items():
+            entry = {'dial_id': dial_id, 'trun_num': len(turns)}
+            for f in field[2:]:
+                entry[f] = ''  # TODO ???
+            results.append(entry)
+            for turn_idx, turn in enumerate(turns):
+                entry = {'dial_id': dial_id}
+                for key in field:
+                    if key in ['dial_id']:
+                        continue
+                    v = turn.get(key, '')
+                    if key == 'turn_domain':
+                        v = ' '.join(v)
+
+                    if key in eos_syntax and v != '':
+                        # remove eos tokens
+                        v = self.tokenizer.decode(v)
+                        v = v.split()
+                        # remove eos/sos in span
+                        if eos_syntax[key] in v:
+                            v.remove(eos_syntax[key])
+                        if sos_syntax[key] in v:
+                            v.remove(sos_syntax[key])
+                        v = ' '.join(v)
+                    else:
+                        pass  # v = v
+                    entry[key] = v
+
+                results.append(entry)
+
+        return results, field
+
+    def convert_turn_eval(self, turn, pv_turn, first_turn=False):
+        """
+        input: [all previous ubar, U_t, B_t, A_t] predict R_t
+        firts turn: [U_t, B_t, A_t] predict R_t
+
+        regarding the context, all previous ubar is too slow, try the previous ubar
+        """
+        inputs = {}
+
+        context_list = []
+        prompt_id = None
+        if self.use_true_curr_bspn:
+            if self.use_true_curr_aspn:  # only predict resp
+                context_list = ['user', 'bspn', 'db', 'aspn']
+                prompt_id = self.sos_r_id
+            else:  # predicted aspn
+                context_list = ['user', 'bspn', 'db']
+                prompt_id = self.sos_a_id
+        else:  # predict bspn aspn resp. db are not predicted. this part tbd.
+            context_list = ['user']
+            prompt_id = self.sos_b_id
+
+        if first_turn:
+            context = []
+            for c in context_list:
+                context += turn[c]
+
+            inputs['src'] = [context]
+            inputs['labels'] = [context]
+        else:
+            context = []
+            for c in context_list:
+                context += turn[c]
+
+            if self.use_true_curr_bspn:
+                pv_context = pv_turn['labels'] + [
+                    pv_turn['aspn'] + pv_turn['resp']
+                ]
+            else:
+                pv_info = pv_turn['bspn'] + pv_turn['db'] + pv_turn[
+                    'aspn'] + pv_turn['resp']
+                pv_context = pv_turn['labels'] + [pv_info]
+
+            # prompt response, add sos_r
+            inputs['src'] = pv_context + [context]
+
+            if self.use_all_previous_context:
+                inputs['labels'] = pv_context + [
+                    context
+                ]  # use all previous ubar history
+            else:
+                inputs['labels'] = [context]  # use previous turn
+
+        return inputs, prompt_id
diff --git a/modelscope/preprocessors/space/fields/intent_field.py b/modelscope/preprocessors/space/fields/intent_field.py
new file mode 100644
index 00000000..9907165e
--- /dev/null
+++ b/modelscope/preprocessors/space/fields/intent_field.py
@@ -0,0 +1,1093 @@
+"""
+Intent Field class
+"""
+import glob
+import multiprocessing
+import os
+import random
+import re
+import time
+from collections import defaultdict
+from itertools import chain
+
+import json
+import numpy as np
+from tqdm import tqdm
+
+from modelscope.preprocessors.space.tokenizer import Tokenizer
+from modelscope.utils.nlp.space import ontology, utils
+from modelscope.utils.nlp.space.scores import hierarchical_set_score
+from modelscope.utils.nlp.space.utils import list2np
+
+
+class BPETextField(object):
+
+    pad_token = '[PAD]'
+    bos_token = '[BOS]'
+    eos_token = '[EOS]'
+    unk_token = '[UNK]'
+    mask_token = '[MASK]'
+    sos_u_token = '<sos_u>'
+    eos_u_token = '<eos_u>'
+    sos_b_token = '<sos_b>'
+    eos_b_token = '<eos_b>'
+    sos_db_token = '<sos_db>'
+    eos_db_token = '<eos_db>'
+    sos_a_token = '<sos_a>'
+    eos_a_token = '<eos_a>'
+    sos_r_token = '<sos_r>'
+    eos_r_token = '<eos_r>'
+
+    def __init__(self, model_dir, config):
+        self.score_matrixs = {}
+        self.prompt_num_for_understand = config.BPETextField.prompt_num_for_understand
+        self.prompt_num_for_policy = config.BPETextField.prompt_num_for_policy
+        self.understand_tokens = ontology.get_understand_tokens(
+            self.prompt_num_for_understand)
+        self.policy_tokens = ontology.get_policy_tokens(
+            self.prompt_num_for_policy)
+        special_tokens = [
+            self.pad_token, self.bos_token, self.eos_token, self.unk_token
+        ]
+        special_tokens.extend(self.add_sepcial_tokens())
+        self.tokenizer = Tokenizer(
+            vocab_path=os.path.join(model_dir, 'vocab.txt'),
+            special_tokens=special_tokens,
+            tokenizer_type=config.BPETextField.tokenizer_type)
+        self.understand_ids = self.numericalize(self.understand_tokens)
+        self.policy_ids = self.numericalize(self.policy_tokens)
+
+        self.tokenizer_type = config.BPETextField.tokenizer_type
+        self.filtered = config.BPETextField.filtered
+        self.max_len = config.BPETextField.max_len
+        self.min_utt_len = config.BPETextField.min_utt_len
+        self.max_utt_len = config.BPETextField.max_utt_len
+        self.min_ctx_turn = config.BPETextField.min_ctx_turn
+        self.max_ctx_turn = config.BPETextField.max_ctx_turn
+        self.policy = config.BPETextField.policy
+        self.generation = config.BPETextField.generation
+        self.with_mlm = config.Dataset.with_mlm
+        self.with_query_bow = config.BPETextField.with_query_bow
+        self.with_contrastive = config.Dataset.with_contrastive
+        self.num_process = config.Dataset.num_process
+        self.dynamic_score = config.Dataset.dynamic_score
+        self.abandon_label = config.Dataset.abandon_label
+        self.trigger_role = config.Dataset.trigger_role
+        self.trigger_data = config.Dataset.trigger_data.split(
+            ',') if config.Dataset.trigger_data else []
+
+        # data_paths = list(os.path.dirname(c) for c in sorted(
+        #     glob.glob(hparams.data_dir + '/**/' + f'train.{hparams.tokenizer_type}.jsonl', recursive=True)))
+        # self.data_paths = self.filter_data_path(data_paths=data_paths)
+        # self.labeled_data_paths = [data_path for data_path in self.data_paths if 'UniDA' in data_path]
+        # self.unlabeled_data_paths = [data_path for data_path in self.data_paths if 'UnDial' in data_path]
+        # assert len(self.unlabeled_data_paths) + len(self.labeled_data_paths) == len(self.data_paths)
+        # assert len(self.labeled_data_paths) or len(self.unlabeled_data_paths), 'No dataset is loaded'
+
+    @property
+    def vocab_size(self):
+        return self.tokenizer.vocab_size
+
+    @property
+    def num_specials(self):
+        return len(self.tokenizer.special_tokens)
+
+    @property
+    def pad_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.pad_token])[0]
+
+    @property
+    def bos_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.bos_token])[0]
+
+    @property
+    def eos_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.eos_token])[0]
+
+    @property
+    def unk_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.unk_token])[0]
+
+    @property
+    def mask_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.mask_token])[0]
+
+    @property
+    def sos_u_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.sos_u_token])[0]
+
+    @property
+    def eos_u_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.eos_u_token])[0]
+
+    @property
+    def sos_b_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.sos_b_token])[0]
+
+    @property
+    def eos_b_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.eos_b_token])[0]
+
+    @property
+    def sos_db_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.sos_db_token])[0]
+
+    @property
+    def eos_db_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.eos_db_token])[0]
+
+    @property
+    def sos_a_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.sos_a_token])[0]
+
+    @property
+    def eos_a_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.eos_a_token])[0]
+
+    @property
+    def sos_r_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.sos_r_token])[0]
+
+    @property
+    def eos_r_id(self):
+        return self.tokenizer.convert_tokens_to_ids([self.eos_r_token])[0]
+
+    @property
+    def bot_id(self):
+        """
+        用于区分user和bot两个角色
+        1和0不是词表中的index，而是专门针对role的index，大小就为2，对应超参数'num_type_embeddings'
+        """
+        return 0
+
+    @property
+    def user_id(self):
+        """
+        用于区分user和bot两个角色
+        1和0不是词表中的index，而是专门针对role的index，大小就为2，对应超参数'num_type_embeddings'
+        """
+        return 1
+
+    def add_sepcial_tokens(self):
+        prompt_tokens = self.understand_tokens + self.policy_tokens
+        return ontology.get_special_tokens(other_tokens=prompt_tokens)
+
+    def filter_data_path(self, data_paths):
+        if self.trigger_data:
+            filtered_data_paths = []
+            for data_path in data_paths:
+                for data_name in self.trigger_data:
+                    if data_path.endswith(f'/{data_name}'):
+                        filtered_data_paths.append(data_path)
+                        break
+        else:
+            filtered_data_paths = data_paths
+        return filtered_data_paths
+
+    def load_score_matrix(self, data_type, data_iter=None):
+        """
+        load score matrix for all labeled datasets
+        """
+        for data_path in self.labeled_data_paths:
+            file_index = os.path.join(
+                data_path, f'{data_type}.{self.tokenizer_type}.jsonl')
+            file = os.path.join(data_path, f'{data_type}.Score.npy')
+            if self.dynamic_score:
+                score_matrix = {}
+                print(f"Created 1 score cache dict for data in '{file_index}'")
+            else:
+                # TODO add post score matrix
+                assert os.path.exists(file), f"{file} isn't exist"
+                print(f"Loading 1 score matrix from '{file}' ...")
+                fp = np.memmap(file, dtype='float32', mode='r')
+                assert len(fp.shape) == 1
+                num = int(np.sqrt(fp.shape[0]))
+                score_matrix = fp.reshape(num, num)
+                print(f"Loaded 1 score matrix for data in '{file_index}'")
+            self.score_matrixs[file_index] = score_matrix
+
+    def random_word(self, chars):
+        output_label = []
+        output_chars = []
+
+        for i, char in enumerate(chars):
+            # TODO delete this part to learn special tokens
+            if char in [
+                    self.sos_u_id, self.eos_u_id, self.sos_r_id, self.eos_r_id
+            ]:
+                output_chars.append(char)
+                output_label.append(self.pad_id)
+                continue
+
+            prob = random.random()
+            if prob < 0.15:
+                prob /= 0.15
+
+                # 80% randomly change token to mask token
+                if prob < 0.8:
+                    output_chars.append(self.mask_id)
+
+                # 10% randomly change token to random token
+                elif prob < 0.9:
+                    tmp = random.randint(1, self.vocab_size - 1)
+                    output_chars.append(tmp)  # start from 1, to exclude pad_id
+
+                # 10% randomly change token to current token
+                else:
+                    output_chars.append(char)
+
+                output_label.append(char)
+
+            else:
+                output_chars.append(char)
+                output_label.append(self.pad_id)
+
+        return output_chars, output_label
+
+    def create_masked_lm_predictions(self, sample):
+        src = sample['src']
+        src_span_mask = sample['src_span_mask']
+        mlm_inputs = []
+        mlm_labels = []
+        for chars, chars_span_mask in zip(src, src_span_mask):
+            if sum(chars_span_mask):
+                mlm_input, mlm_label = [], []
+                for char, char_mask in zip(chars, chars_span_mask):
+                    if char_mask:
+                        mlm_input.append(self.mask_id)
+                        mlm_label.append(char)
+                    else:
+                        mlm_input.append(char)
+                        mlm_label.append(self.pad_id)
+            else:
+                mlm_input, mlm_label = self.random_word(chars)
+            mlm_inputs.append(mlm_input)
+            mlm_labels.append(mlm_label)
+
+        sample['mlm_inputs'] = mlm_inputs
+        sample['mlm_labels'] = mlm_labels
+        return sample
+
+    def create_span_masked_lm_predictions(self, sample):
+        src = sample['src']
+        src_span_mask = sample['src_span_mask']
+        mlm_inputs = []
+        mlm_labels = []
+        for chars, chars_span_mask in zip(src, src_span_mask):
+            mlm_input, mlm_label = [], []
+            for char, char_mask in zip(chars, chars_span_mask):
+                if char_mask:
+                    mlm_input.append(self.mask_id)
+                    mlm_label.append(char)
+                else:
+                    mlm_input.append(char)
+                    mlm_label.append(self.pad_id)
+            mlm_inputs.append(mlm_input)
+            mlm_labels.append(mlm_label)
+
+        sample['mlm_inputs'] = mlm_inputs
+        sample['mlm_labels'] = mlm_labels
+        return sample
+
+    def create_token_masked_lm_predictions(self, sample):
+        mlm_inputs = sample['mlm_inputs']
+        mlm_labels = sample['mlm_labels']
+
+        for i, span_mlm_label in enumerate(mlm_labels):
+            if not sum(span_mlm_label):
+                mlm_input, mlm_label = self.random_word(mlm_inputs[i])
+                mlm_inputs[i] = mlm_input
+                mlm_labels[i] = mlm_label
+
+        return sample
+
+    def numericalize(self, tokens):
+        """
+        here only "convert_tokens_to_ids",
+        which need be tokenized into tokens(sub-words) by "tokenizer.tokenize" before
+        """
+        assert isinstance(tokens, list)
+        if len(tokens) == 0:
+            return []
+        element = tokens[0]
+        if isinstance(element, list):
+            return [self.numericalize(s) for s in tokens]
+        else:
+            return self.tokenizer.convert_tokens_to_ids(tokens)
+
+    def denumericalize(self, numbers):
+        """
+        here first "convert_ids_to_tokens", then combine sub-words into origin words
+        """
+        assert isinstance(numbers, list)
+        if len(numbers) == 0:
+            return []
+        element = numbers[0]
+        if isinstance(element, list):
+            return [self.denumericalize(x) for x in numbers]
+        else:
+            return self.tokenizer.decode(
+                numbers,
+                ignore_tokens=[self.bos_token, self.eos_token, self.pad_token])
+
+    def save_examples(self, examples, filename):
+        start = time.time()
+        if filename.endswith('npy'):
+            print(f"Saving 1 object to '{filename}' ...")
+            assert len(
+                examples.shape) == 2 and examples.shape[0] == examples.shape[1]
+            num = examples.shape[0]
+            fp = np.memmap(
+                filename, dtype='float32', mode='w+', shape=(num, num))
+            fp[:] = examples[:]
+            fp.flush()
+            elapsed = time.time() - start
+            print(f'Saved 1 object (elapsed {elapsed:.2f}s)')
+        elif filename.endswith('jsonl'):
+            print(f"Saving examples to '{filename}' ...")
+            with open(filename, 'w', encoding='utf-8') as fp:
+                for ex in examples:
+                    fp.write(json.dumps(ex) + '\n')
+            elapsed = time.time() - start
+            print(f'Saved {len(examples)} examples (elapsed {elapsed:.2f}s)')
+        else:
+            print(f"Saving examples to '{filename}' ...")
+            raise ValueError(f'Unsport file format: {filename}')
+
+    def load_examples(self, filename):
+        start = time.time()
+        if filename.endswith('npy'):
+            print(f"Loading 1 object from '{filename}' ...")
+            fp = np.memmap(filename, dtype='float32', mode='r')
+            assert len(fp.shape) == 1
+            num = int(np.sqrt(fp.shape[0]))
+            examples = fp.reshape(num, num)
+            elapsed = time.time() - start
+            print(f'Loaded 1 object (elapsed {elapsed:.2f}s)')
+        else:
+            print(f"Loading examples from '{filename}' ...")
+            with open(filename, 'r', encoding='utf-8') as fp:
+                examples = list(map(lambda s: json.loads(s.strip()), fp))
+            elapsed = time.time() - start
+            print(f'Loaded {len(examples)} examples (elapsed {elapsed:.2f}s)')
+        return examples
+
+    def utt_filter_pred(self, utt):
+        return self.min_utt_len <= len(utt) \
+            and (not self.filtered or len(utt) <= self.max_utt_len)
+
+    def utts_filter_pred(self, utts):
+        return self.min_ctx_turn <= len(utts) \
+            and (not self.filtered or len(utts) <= self.max_ctx_turn)
+
+    def get_token_pos(self, tok_list, value_label):
+        find_pos = []
+        found = False
+        label_list = [
+            item
+            for item in map(str.strip, re.split('(\\W+)', value_label.lower()))
+            if len(item) > 0
+        ]
+        len_label = len(label_list)
+        for i in range(len(tok_list) + 1 - len_label):
+            if tok_list[i:i + len_label] == label_list:
+                find_pos.append((i, i + len_label))  # start, exclusive_end
+                found = True
+        return found, find_pos
+
+    def build_score_matrix(self, examples):
+        """
+        build symmetric score matrix
+        """
+        assert self.num_process == 1
+        print('Building score matrix from examples ...')
+        num = len(examples)
+        score_matrix = np.eye(
+            num, num, dtype='float32'
+        )  # in case of empty label of self, resulting in score 0.
+
+        for i in tqdm(range(num)):
+            for j in range(i):
+                # TODO change the score method
+                score = hierarchical_set_score(
+                    frame1=examples[i]['label'], frame2=examples[j]['label'])
+                score_matrix[i][j] = score
+                score_matrix[j][i] = score
+
+        print('Built score matrix')
+        return score_matrix
+
+    def build_score_matrix_on_the_fly(self,
+                                      ids,
+                                      labels,
+                                      data_file,
+                                      is_post=False):
+        """
+        build symmetric score matrix on the fly
+        @is_post: True for resp label of sample i and j, False for query label of sample i and j
+        """
+        num = len(labels)
+        tag = 'r' if is_post else 'q'
+        assert len(ids) == len(labels)
+        score_matrix = np.eye(
+            num, num, dtype='float32'
+        )  # in case of empty label of self, resulting in score 0.
+
+        for i in range(num):
+            for j in range(i):
+                score = self.score_matrixs[data_file].get(
+                    f'{ids[i]}-{ids[j]}-{tag}', None)
+                if score is None:
+                    score = self.score_matrixs[data_file].get(
+                        f'{ids[j]}-{ids[i]}-{tag}', None)
+                if score is None:
+                    # TODO change the score method
+                    score = hierarchical_set_score(
+                        frame1=labels[i], frame2=labels[j])
+                    self.score_matrixs[data_file][
+                        f'{ids[i]}-{ids[j]}-{tag}'] = score
+                score_matrix[i][j] = score
+                score_matrix[j][i] = score
+
+        return score_matrix
+
+    def build_score_matrix_func(self, examples, start, exclusive_end):
+        """
+        build sub score matrix
+        """
+        num = len(examples)
+        process_id = os.getpid()
+        description = f'PID: {process_id} Start: {start} End: {exclusive_end}'
+        print(
+            f'PID-{process_id}: Building {start} to {exclusive_end} lines score matrix from examples ...'
+        )
+        score_matrix = np.zeros((exclusive_end - start, num), dtype='float32')
+
+        for abs_i, i in enumerate(
+                tqdm(range(start, exclusive_end), desc=description)):
+            for j in range(num):
+                # TODO change the score method
+                score = hierarchical_set_score(
+                    frame1=examples[i]['label'], frame2=examples[j]['label'])
+                score_matrix[abs_i][j] = score
+
+        print(
+            f'PID-{process_id}: Built {start} to {exclusive_end} lines score matrix'
+        )
+        return {'start': start, 'score_matrix': score_matrix}
+
+    def build_score_matrix_multiprocessing(self, examples):
+        """
+        build score matrix
+        """
+        assert self.num_process >= 2 and multiprocessing.cpu_count() >= 2
+        print('Building score matrix from examples ...')
+        results = []
+        num = len(examples)
+        sub_num, res_num = num // self.num_process, num % self.num_process
+        patches = [sub_num] * (self.num_process - 1) + [sub_num + res_num]
+
+        start = 0
+        pool = multiprocessing.Pool(processes=self.num_process)
+        for patch in patches:
+            exclusive_end = start + patch
+            results.append(
+                pool.apply_async(self.build_score_matrix_func,
+                                 (examples, start, exclusive_end)))
+            start = exclusive_end
+        pool.close()
+        pool.join()
+
+        sub_score_matrixs = [result.get() for result in results]
+        sub_score_matrixs = sorted(
+            sub_score_matrixs, key=lambda sub: sub['start'])
+        sub_score_matrixs = [
+            sub_score_matrix['score_matrix']
+            for sub_score_matrix in sub_score_matrixs
+        ]
+        score_matrix = np.concatenate(sub_score_matrixs, axis=0)
+        assert score_matrix.shape == (num, num)
+        np.fill_diagonal(
+            score_matrix,
+            1.)  # in case of empty label of self, resulting in score 0.
+
+        print('Built score matrix')
+        return score_matrix
+
+    def extract_span_texts(self, text, label):
+        span_texts = []
+        for domain, frame in label.items():
+            for act, slot_values in frame.items():
+                for slot, values in slot_values.items():
+                    for value in values:
+                        if value['span']:
+                            span_texts.append(
+                                text[value['span'][0]:value['span'][1]])
+                        elif str(value['value']).strip().lower() in text.strip(
+                        ).lower():
+                            span_texts.append(str(value['value']))
+        return span_texts
+
+    def fix_label(self, label):
+        for domain, frame in label.items():
+            if not frame:
+                return {}
+            for act, slot_values in frame.items():
+                if act == 'DEFAULT_INTENT' and not slot_values:
+                    return {}
+        return label
+
+    def build_examples_multi_turn(self, data_file, data_type='train'):
+        print(f"Reading examples from '{data_file}' ...")
+        examples = []
+        ignored = 0
+
+        with open(data_file, 'r', encoding='utf-8') as f:
+            input_data = json.load(f)
+            for dialog_id in tqdm(input_data):
+                turns = input_data[dialog_id]['turns']
+                history, history_role, history_span_mask, history_label = [], [], [], []
+                for t, turn in enumerate(turns):
+                    label = turn['label']
+                    role = turn['role']
+                    text = turn['text']
+                    utterance, span_mask = [], []
+
+                    token_list = [
+                        tok for tok in map(str.strip,
+                                           re.split('(\\W+)', text.lower()))
+                        if len(tok) > 0
+                    ]
+                    span_list = np.zeros(len(token_list), dtype=np.int32)
+                    span_texts = self.extract_span_texts(
+                        text=text, label=label)
+
+                    for span_text in span_texts:
+                        found, find_pos = self.get_token_pos(
+                            tok_list=token_list, value_label=span_text)
+                        if found:
+                            for start, exclusive_end in find_pos:
+                                span_list[start:exclusive_end] = 1
+
+                    token_list = [
+                        self.tokenizer.tokenize(token) for token in token_list
+                    ]
+                    span_list = [[tag] * len(token_list[i])
+                                 for i, tag in enumerate(span_list)]
+                    for sub_tokens in token_list:
+                        utterance.extend(sub_tokens)
+                    for sub_spans in span_list:
+                        span_mask.extend(sub_spans)
+                    assert len(utterance) == len(span_mask)
+
+                    history.append(utterance)
+                    history_role.append(role)
+                    history_span_mask.append(span_mask)
+                    history_label.append(self.fix_label(label))
+
+                    tmp = self.utts_filter_pred(history[:-1]) and all(
+                        map(self.utt_filter_pred, history))
+                    if (
+                            tmp or data_type == 'test'
+                    ) and role in self.trigger_role and t:  # TODO consider test
+                        src = [
+                            s[-self.max_utt_len:]
+                            for s in history[:-1][-self.max_ctx_turn:]
+                        ]
+                        src_span_mask = [
+                            s[-self.max_utt_len:] for s in
+                            history_span_mask[:-1][-self.max_ctx_turn:]
+                        ]
+                        roles = [
+                            role
+                            for role in history_role[:-1][-self.max_ctx_turn:]
+                        ]
+
+                        new_src = []
+                        for i, s in enumerate(src):
+                            if roles[i] == 'user':
+                                user_or_sys = [self.eos_u_id]
+                            else:
+                                user_or_sys = [self.sos_r_id]
+                            tmp = [self.sos_u_id
+                                   ] + self.numericalize(s) + user_or_sys
+                            tmp = tmp + self.numericalize(s) + [self.eos_r_id]
+                            new_src.append(tmp)
+
+                        src_span_mask = [[0] + list(map(int, s)) + [0]
+                                         for s in src_span_mask]
+
+                        tgt = [self.sos_r_id] + self.numericalize(
+                            history[-1]) + [self.eos_r_id]
+                        if data_type != 'test':
+                            tgt = tgt[:self.max_utt_len + 2]
+
+                        ex = {
+                            'dialog_id': dialog_id,
+                            'turn_id': turn['turn_id'],
+                            'src': new_src,
+                            'src_span_mask': src_span_mask,
+                            'tgt': tgt,
+                            'query_label': history_label[-2],
+                            'resp_label': history_label[-1],
+                            'extra_info': turn.get('extra_info', '')
+                        }
+                        examples.append(ex)
+                    else:
+                        ignored += 1
+
+        # add span mlm inputs and span mlm labels in advance
+        if self.with_mlm:
+            examples = [
+                self.create_span_masked_lm_predictions(example)
+                for example in examples
+            ]
+
+        # add absolute id of the dataset for indexing scores in its score matrix
+        for i, example in enumerate(examples):
+            example['id'] = i
+
+        print(
+            f'Built {len(examples)} {data_type.upper()} examples ({ignored} filtered)'
+        )
+        return examples
+
+    def preprocessor(self, text_list):
+        role = 'user'
+        examples = []
+
+        for text in text_list:
+            history, history_role, history_span_mask = [], [], []
+            utterance, span_mask = [], []
+            token_list = [
+                tok for tok in map(str.strip, re.split('(\\W+)', text.lower()))
+                if len(tok) > 0
+            ]
+            span_list = np.zeros(len(token_list), dtype=np.int32)
+            token_list = [
+                self.tokenizer.tokenize(token) for token in token_list
+            ]
+            span_list = [[tag] * len(token_list[i])
+                         for i, tag in enumerate(span_list)]
+
+            for sub_tokens in token_list:
+                utterance.extend(sub_tokens)
+            for sub_spans in span_list:
+                span_mask.extend(sub_spans)
+            assert len(utterance) == len(span_mask)
+
+            history.append(utterance)
+            history_role.append(role)
+            history_span_mask.append(span_mask)
+
+            src = [s[-self.max_utt_len:] for s in history[-self.max_ctx_turn:]]
+            src_span_mask = [
+                s[-self.max_utt_len:]
+                for s in history_span_mask[-self.max_ctx_turn:]
+            ]
+            roles = [role for role in history_role[-self.max_ctx_turn:]]
+
+            new_src = []
+            for i, s in enumerate(src):
+                if roles[i] == 'user':
+                    user_or_sys = [self.eos_u_id]
+                else:
+                    user_or_sys = [self.sos_r_id]
+                tmp = [self.sos_u_id] + self.numericalize(s) + user_or_sys
+                tmp = tmp + self.numericalize(s) + [self.eos_r_id]
+                new_src.append(tmp)
+
+            src_span_mask = [[0] + list(map(int, s)) + [0]
+                             for s in src_span_mask]
+
+            ex = {
+                'dialog_id': 'inference',
+                'turn_id': 0,
+                'role': role,
+                'src': new_src,
+                'src_span_mask': src_span_mask,
+                'query_label': {
+                    'DEFAULT_DOMAIN': {
+                        'card_arrival': {}
+                    }
+                },
+                'extra_info': {
+                    'intent_label': -1
+                }
+            }
+            examples.append(ex)
+        # add span mlm inputs and span mlm labels in advance
+        if self.with_mlm:
+            examples = [
+                self.create_span_masked_lm_predictions(example)
+                for example in examples
+            ]
+
+        # add absolute id of the dataset for indexing scores in its score matrix
+        for i, example in enumerate(examples):
+            example['id'] = i
+
+        return examples
+
+    def build_examples_single_turn(self, data_file, data_type='train'):
+        print(f"Reading examples from '{data_file}' ...")
+        examples = []
+        ignored = 0
+
+        with open(data_file, 'r', encoding='utf-8') as f:
+            input_data = json.load(f)
+            for dialog_id in tqdm(input_data):
+                turns = input_data[dialog_id]['turns']
+                history, history_role, history_span_mask = [], [], []
+                for turn in turns:
+                    label = turn['label']
+                    role = turn['role']
+                    text = turn['text']
+                    utterance, span_mask = [], []
+
+                    token_list = [
+                        tok for tok in map(str.strip,
+                                           re.split('(\\W+)', text.lower()))
+                        if len(tok) > 0
+                    ]
+                    span_list = np.zeros(len(token_list), dtype=np.int32)
+                    span_texts = self.extract_span_texts(
+                        text=text, label=label)
+
+                    for span_text in span_texts:
+                        found, find_pos = self.get_token_pos(
+                            tok_list=token_list, value_label=span_text)
+                        if found:
+                            for start, exclusive_end in find_pos:
+                                span_list[start:exclusive_end] = 1
+
+                    token_list = [
+                        self.tokenizer.tokenize(token) for token in token_list
+                    ]
+                    span_list = [[tag] * len(token_list[i])
+                                 for i, tag in enumerate(span_list)]
+                    for sub_tokens in token_list:
+                        utterance.extend(sub_tokens)
+                    for sub_spans in span_list:
+                        span_mask.extend(sub_spans)
+                    assert len(utterance) == len(span_mask)
+
+                    history.append(utterance)
+                    history_role.append(role)
+                    history_span_mask.append(span_mask)
+
+                    tmp = self.utts_filter_pred(history) and all(
+                        map(self.utt_filter_pred, history))
+                    tmp = tmp or data_type == 'test'
+                    if tmp and role in self.trigger_role:  # TODO consider test
+                        src = [
+                            s[-self.max_utt_len:]
+                            for s in history[-self.max_ctx_turn:]
+                        ]
+                        src_span_mask = [
+                            s[-self.max_utt_len:]
+                            for s in history_span_mask[-self.max_ctx_turn:]
+                        ]
+                        roles = [
+                            role for role in history_role[-self.max_ctx_turn:]
+                        ]
+                        new_src = []
+                        for i, s in enumerate(src):
+                            if roles[i] == 'user':
+                                user_or_sys = [self.eos_u_id]
+                            else:
+                                user_or_sys = [self.sos_r_id]
+                            tmp = [self.sos_u_id
+                                   ] + self.numericalize(s) + user_or_sys
+                            tmp = tmp + self.numericalize(s) + [self.eos_r_id]
+                            new_src.append(tmp)
+
+                        src_span_mask = [[0] + list(map(int, s)) + [0]
+                                         for s in src_span_mask]
+
+                        ex = {
+                            'dialog_id': dialog_id,
+                            'turn_id': turn['turn_id'],
+                            'role': role,
+                            'src': new_src,
+                            'src_span_mask': src_span_mask,
+                            'query_label': self.fix_label(label),
+                            'extra_info': turn.get('extra_info', '')
+                        }
+                        examples.append(ex)
+                    else:
+                        ignored += 1
+
+        # add span mlm inputs and span mlm labels in advance
+        if self.with_mlm:
+            examples = [
+                self.create_span_masked_lm_predictions(example)
+                for example in examples
+            ]
+
+        # add absolute id of the dataset for indexing scores in its score matrix
+        for i, example in enumerate(examples):
+            example['id'] = i
+
+        print(
+            f'Built {len(examples)} {data_type.upper()} examples ({ignored} filtered)'
+        )
+        return examples
+
+    def collate_fn_multi_turn(self, samples):
+        batch_size = len(samples)
+        batch = {}
+
+        src = [sp['src'] for sp in samples]
+        query_token, src_token, src_pos, src_turn, src_role = [], [], [], [], []
+        for utts in src:
+            query_token.append(utts[-1])
+            utt_lens = [len(utt) for utt in utts]
+
+            # Token ids
+            src_token.append(list(chain(*utts))[-self.max_len:])
+
+            # Position ids
+            pos = [list(range(utt_len)) for utt_len in utt_lens]
+            src_pos.append(list(chain(*pos))[-self.max_len:])
+
+            # Turn ids
+            turn = [[len(utts) - i] * l for i, l in enumerate(utt_lens)]
+            src_turn.append(list(chain(*turn))[-self.max_len:])
+
+            # Role ids
+            role = [
+                [self.bot_id if (len(utts) - i) % 2 == 0 else self.user_id] * l
+                for i, l in enumerate(utt_lens)
+            ]
+            src_role.append(list(chain(*role))[-self.max_len:])
+
+        # src端序列和tgt端序列需要分开pad，以保证解码时第一个词对齐
+        src_token = list2np(src_token, padding=self.pad_id)
+        src_pos = list2np(src_pos, padding=self.pad_id)
+        src_turn = list2np(src_turn, padding=self.pad_id)
+        src_role = list2np(src_role, padding=self.pad_id)
+        batch['src_token'] = src_token
+        batch['src_pos'] = src_pos
+        batch['src_type'] = src_role
+        batch['src_turn'] = src_turn
+        batch['src_mask'] = (src_token != self.pad_id).astype('int64')
+
+        if self.with_query_bow:
+            query_token = list2np(query_token, padding=self.pad_id)
+            batch['query_token'] = query_token
+            batch['query_mask'] = (query_token != self.pad_id).astype('int64')
+
+        if self.with_mlm:
+            mlm_token, mlm_label = [], []
+            raw_mlm_input = [sp['mlm_inputs'] for sp in samples]
+            raw_mlm_label = [sp['mlm_labels'] for sp in samples]
+            for inputs in raw_mlm_input:
+                mlm_token.append(list(chain(*inputs))[-self.max_len:])
+            for labels in raw_mlm_label:
+                mlm_label.append(list(chain(*labels))[-self.max_len:])
+
+            mlm_token = list2np(mlm_token, padding=self.pad_id)
+            mlm_label = list2np(mlm_label, padding=self.pad_id)
+            batch['mlm_token'] = mlm_token
+            batch['mlm_label'] = mlm_label
+            batch['mlm_mask'] = (mlm_label != self.pad_id).astype('int64')
+
+        if self.dynamic_score and self.with_contrastive and not self.abandon_label:
+            query_labels = [sp['query_label'] for sp in samples]
+            batch['query_labels'] = query_labels
+            if self.trigger_role == 'system':
+                resp_labels = [sp['resp_label'] for sp in samples]
+                batch['resp_labels'] = resp_labels
+            batch['label_ids'] = np.arange(
+                batch_size)  # to identify labels for each GPU when multi-gpu
+
+        if self.understand_ids:
+            understand = [self.understand_ids for _ in samples]
+            understand_token = np.array(understand).astype('int64')
+            batch['understand_token'] = understand_token
+            batch['understand_mask'] = \
+                (understand_token != self.pad_id).astype('int64')
+
+        if self.policy_ids and self.policy:
+            policy = [self.policy_ids for _ in samples]
+            policy_token = np.array(policy).astype('int64')
+            batch['policy_token'] = policy_token
+            batch['policy_mask'] = \
+                (policy_token != self.pad_id).astype('int64')
+
+        if 'tgt' in samples[0]:
+            tgt = [sp['tgt'] for sp in samples]
+
+            # Token ids & Label ids
+            tgt_token = list2np(tgt, padding=self.pad_id)
+
+            # Position ids
+            tgt_pos = np.zeros_like(tgt_token)
+            tgt_pos[:] = np.arange(tgt_token.shape[1], dtype=tgt_token.dtype)
+
+            # Turn ids
+            tgt_turn = np.zeros_like(tgt_token)
+
+            # Role ids
+            tgt_role = np.full_like(tgt_token, self.bot_id)
+
+            batch['tgt_token'] = tgt_token
+            batch['tgt_pos'] = tgt_pos
+            batch['tgt_type'] = tgt_role
+            batch['tgt_turn'] = tgt_turn
+            batch['tgt_mask'] = (tgt_token != self.pad_id).astype('int64')
+
+        if 'id' in samples[0]:
+            ids = [sp['id'] for sp in samples]
+            ids = np.array(ids).astype('int64')
+            batch['ids'] = ids
+
+        return batch, batch_size
+
+
+class IntentBPETextField(BPETextField):
+
+    def __init__(self, model_dir, config):
+        super(IntentBPETextField, self).__init__(model_dir, config)
+
+    def retrieve_examples(self,
+                          dataset,
+                          labels,
+                          inds,
+                          task,
+                          num=None,
+                          cache=None):
+        assert task == 'intent', 'Example-driven may only be used with intent prediction'
+        if num is None and labels is not None:
+            num = len(labels) * 2
+
+        # Populate cache
+        if cache is None:
+            cache = defaultdict(list)
+            for i, example in enumerate(dataset):
+                assert i == example['id']
+                cache[example['extra_info']['intent_label']].append(i)
+
+        # One example for each label
+        example_inds = []
+        for lable in set(labels.tolist()):
+            if lable == -1:
+                continue
+
+            ind = random.choice(cache[l])
+            retries = 0
+            while ind in inds.tolist() or type(ind) is not int:
+                ind = random.choice(cache[l])
+                retries += 1
+                if retries > len(dataset):
+                    break
+
+            example_inds.append(ind)
+
+        # Sample randomly until we hit batch size
+        while len(example_inds) < min(len(dataset), num):
+            ind = random.randint(0, len(dataset) - 1)
+            if ind not in example_inds and ind not in inds.tolist():
+                example_inds.append(ind)
+
+        # Create examples
+        example_batch = {}
+        examples = [dataset[i] for i in example_inds]
+        examples, _ = self.collate_fn_multi_turn(examples)
+        example_batch['example_src_token'] = examples['src_token']
+        example_batch['example_src_pos'] = examples['src_pos']
+        example_batch['example_src_type'] = examples['src_type']
+        example_batch['example_src_turn'] = examples['src_turn']
+        example_batch['example_src_mask'] = examples['src_mask']
+        example_batch['example_tgt_token'] = examples['tgt_token']
+        example_batch['example_tgt_mask'] = examples['tgt_mask']
+        example_batch['example_intent'] = examples['intent_label']
+
+        return example_batch
+
+    def collate_fn_multi_turn(self, samples):
+        batch_size = len(samples)
+        batch = {}
+
+        cur_roles = [sp['role'] for sp in samples]
+        src = [sp['src'] for sp in samples]
+        src_token, src_pos, src_turn, src_role = [], [], [], []
+        for utts, cur_role in zip(src, cur_roles):
+            utt_lens = [len(utt) for utt in utts]
+
+            # Token ids
+            src_token.append(list(chain(*utts))[-self.max_len:])
+
+            # Position ids
+            pos = [list(range(utt_len)) for utt_len in utt_lens]
+            src_pos.append(list(chain(*pos))[-self.max_len:])
+
+            # Turn ids
+            turn = [[len(utts) - i] * l for i, l in enumerate(utt_lens)]
+            src_turn.append(list(chain(*turn))[-self.max_len:])
+
+            # Role ids
+            if cur_role == 'user':
+                role = [[
+                    self.bot_id if (len(utts) - i) % 2 == 0 else self.user_id
+                ] * l for i, l in enumerate(utt_lens)]
+            else:
+                role = [[
+                    self.user_id if (len(utts) - i) % 2 == 0 else self.bot_id
+                ] * l for i, l in enumerate(utt_lens)]
+            src_role.append(list(chain(*role))[-self.max_len:])
+
+        # src端序列和tgt端序列需要分开pad，以保证解码时第一个词对齐
+        src_token = list2np(src_token, padding=self.pad_id)
+        src_pos = list2np(src_pos, padding=self.pad_id)
+        src_turn = list2np(src_turn, padding=self.pad_id)
+        src_role = list2np(src_role, padding=self.pad_id)
+        batch['src_token'] = src_token
+        batch['src_pos'] = src_pos
+        batch['src_type'] = src_role
+        batch['src_turn'] = src_turn
+        batch['src_mask'] = (src_token != self.pad_id).astype(
+            'int64')  # input mask
+
+        if self.with_mlm:
+            mlm_token, mlm_label = [], []
+            raw_mlm_input = [sp['mlm_inputs'] for sp in samples]
+            raw_mlm_label = [sp['mlm_labels'] for sp in samples]
+            for inputs in raw_mlm_input:
+                mlm_token.append(list(chain(*inputs))[-self.max_len:])
+            for labels in raw_mlm_label:
+                mlm_label.append(list(chain(*labels))[-self.max_len:])
+
+            mlm_token = list2np(mlm_token, padding=self.pad_id)
+            mlm_label = list2np(mlm_label, padding=self.pad_id)
+            batch['mlm_token'] = mlm_token
+            batch['mlm_label'] = mlm_label
+            batch['mlm_mask'] = (mlm_label != self.pad_id).astype(
+                'int64')  # label mask
+
+        if self.understand_ids:
+            tgt = [self.understand_ids for _ in samples]
+            tgt_token = np.array(tgt).astype('int64')
+            batch['tgt_token'] = tgt_token
+            batch['tgt_mask'] = (tgt_token != self.pad_id).astype(
+                'int64')  # input mask
+
+        if 'id' in samples[0]:
+            ids = [sp['id'] for sp in samples]
+            ids = np.array(ids).astype('int64')
+            batch['ids'] = ids
+
+        if self.dynamic_score and self.with_contrastive:
+            query_labels = [sp['query_label'] for sp in samples]
+            batch['query_labels'] = query_labels
+            batch['label_ids'] = np.arange(batch_size)
+
+        if 'intent_label' in samples[0]['extra_info']:
+            intent_label = [
+                sample['extra_info']['intent_label'] for sample in samples
+            ]
+            intent_label = np.array(intent_label).astype('int64')
+            batch['intent_label'] = intent_label
+
+        return batch, batch_size
diff --git a/modelscope/preprocessors/space/tokenizer.py b/modelscope/preprocessors/space/tokenizer.py
new file mode 100644
index 00000000..764552cd
--- /dev/null
+++ b/modelscope/preprocessors/space/tokenizer.py
@@ -0,0 +1,672 @@
+from __future__ import (absolute_import, division, print_function,
+                        unicode_literals)
+import collections
+import logging
+import os
+import sys
+import unicodedata
+
+import json
+import regex as re
+
+
+def clean_string(string):
+    replace_mp = {
+        ' - ': '-',
+        " ' ": "'",
+        " n't": "n't",
+        " 'm": "'m",
+        ' do not': " don't",
+        " 's": "'s",
+        " 've": "'ve",
+        " 're": "'re"
+    }
+    for k, v in replace_mp.items():
+        string = string.replace(k, v)
+    return string
+
+
+class Tokenizer(object):
+
+    def __init__(self, vocab_path, special_tokens=[], tokenizer_type='Bert'):
+        self.tokenizer_type = tokenizer_type
+        if tokenizer_type == 'Bert':
+            self.spec_convert_dict = {
+                '[BOS]': '[unused0]',
+                '[EOS]': '[unused1]'
+            }
+            for token in special_tokens:
+                if token not in self.spec_convert_dict and token not in [
+                        '[PAD]', '[UNK]'
+                ]:
+                    self.spec_convert_dict[
+                        token] = f'[unused{len(self.spec_convert_dict)}]'
+            self.spec_revert_dict = {
+                v: k
+                for k, v in self.spec_convert_dict.items()
+            }
+            special_tokens = [
+                self.spec_convert_dict.get(tok, tok) for tok in special_tokens
+            ]
+            self.special_tokens = ('[UNK]', '[SEP]', '[PAD]', '[CLS]',
+                                   '[MASK]')
+            self.special_tokens += tuple(x for x in special_tokens
+                                         if x not in self.special_tokens)
+
+            self._tokenizer = BertTokenizer(
+                vocab_path, never_split=self.special_tokens)
+            for tok in self.special_tokens:
+                '''
+                需要先保证special_tokens在词表中，这里设置special_tokens的目的是为了这些词能够完整占位，不再切分为子词；
+                若不在词表中，可以使用词表中的[unused]符号进行转换：spec_convert_dict；
+                '''
+                assert tok in self._tokenizer.vocab, f"special token '{tok}' is not in the vocabulary"
+            self.vocab_size = len(self._tokenizer.vocab)
+        elif tokenizer_type == 'GPT2':
+            self.spec_convert_dict = {'[UNK]': '<unk>'}
+            self.spec_revert_dict = {
+                v: k
+                for k, v in self.spec_convert_dict.items()
+            }
+            special_tokens = [
+                tok for tok in special_tokens
+                if tok not in self.spec_convert_dict
+            ]
+            vocab_file = os.path.join(vocab_path, 'vocab.json')
+            merges_file = os.path.join(vocab_path, 'merges.txt')
+            self._tokenizer = GPT2Tokenizer(
+                vocab_file, merges_file, special_tokens=special_tokens)
+            self.num_specials = len(special_tokens)
+            self.vocab_size = len(self._tokenizer)
+        else:
+            raise ValueError
+
+    def tokenize(self, text):
+        return self._tokenizer.tokenize(text)
+
+    def convert_tokens_to_ids(self, tokens):
+        if self.tokenizer_type == 'Bert':
+            tokens = [self.spec_convert_dict.get(tok, tok) for tok in tokens]
+            ids = self._tokenizer.convert_tokens_to_ids(tokens)
+            return ids
+        else:
+            tokens = [self.spec_convert_dict.get(tok, tok) for tok in tokens]
+            ids = self._tokenizer.convert_tokens_to_ids(tokens)
+            ids = [(i + self.num_specials) % self.vocab_size for i in ids]
+            return ids
+
+    def convert_ids_to_tokens(self, ids):
+        if self.tokenizer_type == 'Bert':
+            tokens = self._tokenizer.convert_ids_to_tokens(ids)
+            tokens = [self.spec_revert_dict.get(tok, tok) for tok in tokens]
+            return tokens
+        else:
+            ids = [(i - self.num_specials) % self.vocab_size for i in ids]
+            tokens = self._tokenizer.convert_ids_to_tokens(ids)
+            tokens = [self.spec_revert_dict.get(tok, tok) for tok in tokens]
+            return tokens
+
+    def decode(self, ids, ignore_tokens=[]):
+        tokens = self.convert_ids_to_tokens(ids)
+        if len(ignore_tokens) > 0:
+            ignore_tokens = set(ignore_tokens)
+            tokens = [tok for tok in tokens if tok not in ignore_tokens]
+        if self.tokenizer_type == 'Bert':
+            string = ' '.join(tokens).replace(' ##', '')
+        else:
+            string = ''.join(tokens)
+            string = bytearray([
+                self._tokenizer.byte_decoder[c] for c in string
+            ]).decode('utf-8')
+        string = clean_string(string)
+        return string
+
+
+# Copyright 2018 The Google AI Language Team Authors and The HuggingFace Inc. team.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tokenization classes."""
+
+logger = logging.getLogger(__name__)
+
+
+def load_vocab(vocab_file):
+    """Loads a vocabulary file into a dictionary."""
+    vocab = collections.OrderedDict()
+    index = 0
+    with open(vocab_file, 'r', encoding='utf-8') as reader:
+        while True:
+            token = reader.readline()
+            if not token:
+                break
+            token = token.strip()
+            vocab[token] = index
+            index += 1
+    return vocab
+
+
+def whitespace_tokenize(text):
+    """Runs basic whitespace cleaning and splitting on a piece of text."""
+    text = text.strip()
+    if not text:
+        return []
+    tokens = text.split()
+    return tokens
+
+
+class BertTokenizer(object):
+    """Runs end-to-end tokenization: punctuation splitting + wordpiece"""
+
+    def __init__(self,
+                 vocab_file,
+                 do_lower_case=True,
+                 max_len=None,
+                 do_basic_tokenize=True,
+                 never_split=('[UNK]', '[SEP]', '[PAD]', '[CLS]', '[MASK]')):
+        """Constructs a BertTokenizer.
+
+        Args:
+          vocab_file: Path to a one-wordpiece-per-line vocabulary file
+          do_lower_case: Whether to lower case the input
+                         Only has an effect when do_wordpiece_only=False
+          do_basic_tokenize: Whether to do basic tokenization before wordpiece.
+          max_len: An artificial maximum length to truncate tokenized sequences to;
+                         Effective maximum length is always the minimum of this
+                         value (if specified) and the underlying BERT model's
+                         sequence length.
+          never_split: List of tokens which will never be split during tokenization.
+                         Only has an effect when do_wordpiece_only=False
+        """
+        if not os.path.isfile(vocab_file):
+            raise ValueError(
+                "Can't find a vocabulary file at path '{}'. To load the vocabulary from a Google pretrained "
+                'model use `tokenizer = BertTokenizer.from_pretrained(PRETRAINED_MODEL_NAME)`'
+                .format(vocab_file))
+        self.vocab = load_vocab(vocab_file)
+        self.ids_to_tokens = collections.OrderedDict([
+            (ids, tok) for tok, ids in self.vocab.items()
+        ])
+        self.do_basic_tokenize = do_basic_tokenize
+        if do_basic_tokenize:
+            self.basic_tokenizer = BasicTokenizer(
+                do_lower_case=do_lower_case, never_split=never_split)
+        self.wordpiece_tokenizer = WordpieceTokenizer(vocab=self.vocab)
+        self.max_len = max_len if max_len is not None else int(1e12)
+
+    def tokenize(self, text):
+        split_tokens = []
+        if self.do_basic_tokenize:
+            for token in self.basic_tokenizer.tokenize(text):
+                for sub_token in self.wordpiece_tokenizer.tokenize(token):
+                    split_tokens.append(sub_token)
+        else:
+            split_tokens = self.wordpiece_tokenizer.tokenize(text)
+        return split_tokens
+
+    def convert_tokens_to_ids(self, tokens):
+        """Converts a sequence of tokens into ids using the vocab."""
+        ids = []
+        for token in tokens:
+            ids.append(self.vocab[token])
+        if len(ids) > self.max_len:
+            logger.warning(
+                'Token indices sequence length is longer than the specified maximum '
+                ' sequence length for this BERT model ({} > {}). Running this'
+                ' sequence through BERT will result in indexing errors'.format(
+                    len(ids), self.max_len))
+        return ids
+
+    def convert_ids_to_tokens(self, ids):
+        """Converts a sequence of ids in wordpiece tokens using the vocab."""
+        tokens = []
+        for i in ids:
+            tokens.append(self.ids_to_tokens[i])
+        return tokens
+
+
+class BasicTokenizer(object):
+    """Runs basic tokenization (punctuation splitting, lower casing, etc.)."""
+
+    def __init__(self,
+                 do_lower_case=True,
+                 never_split=('[UNK]', '[SEP]', '[PAD]', '[CLS]', '[MASK]')):
+        """Constructs a BasicTokenizer.
+
+        Args:
+          do_lower_case: Whether to lower case the input.
+        """
+        self.do_lower_case = do_lower_case
+        self.never_split = never_split
+
+    def tokenize(self, text):
+        """Tokenizes a piece of text."""
+        text = self._clean_text(text)
+        # This was added on November 1st, 2018 for the multilingual and Chinese
+        # models. This is also applied to the English models now, but it doesn't
+        # matter since the English models were not trained on any Chinese data
+        # and generally don't have any Chinese data in them (there are Chinese
+        # characters in the vocabulary because Wikipedia does have some Chinese
+        # words in the English Wikipedia.).
+        text = self._tokenize_chinese_chars(text)
+        orig_tokens = whitespace_tokenize(text)
+        split_tokens = []
+        for token in orig_tokens:
+            if self.do_lower_case and token not in self.never_split:
+                token = token.lower()
+                token = self._run_strip_accents(token)
+            split_tokens.extend(self._run_split_on_punc(token))
+
+        output_tokens = whitespace_tokenize(' '.join(split_tokens))
+        return output_tokens
+
+    def _run_strip_accents(self, text):
+        """Strips accents from a piece of text."""
+        text = unicodedata.normalize('NFD', text)
+        output = []
+        for char in text:
+            cat = unicodedata.category(char)
+            if cat == 'Mn':
+                continue
+            output.append(char)
+        return ''.join(output)
+
+    def _run_split_on_punc(self, text):
+        """Splits punctuation on a piece of text."""
+        if text in self.never_split:
+            return [text]
+        chars = list(text)
+        i = 0
+        start_new_word = True
+        output = []
+        while i < len(chars):
+            char = chars[i]
+            if _is_punctuation(char):
+                output.append([char])
+                start_new_word = True
+            else:
+                if start_new_word:
+                    output.append([])
+                start_new_word = False
+                output[-1].append(char)
+            i += 1
+
+        return [''.join(x) for x in output]
+
+    def _tokenize_chinese_chars(self, text):
+        """Adds whitespace around any CJK character."""
+        output = []
+        for char in text:
+            cp = ord(char)
+            if self._is_chinese_char(cp):
+                output.append(' ')
+                output.append(char)
+                output.append(' ')
+            else:
+                output.append(char)
+        return ''.join(output)
+
+    def _is_chinese_char(self, cp):
+        """Checks whether CP is the codepoint of a CJK character."""
+        # This defines a "chinese character" as anything in the CJK Unicode block:
+        #   https://en.wikipedia.org/wiki/CJK_Unified_Ideographs_(Unicode_block)
+        #
+        # Note that the CJK Unicode block is NOT all Japanese and Korean characters,
+        # despite its name. The modern Korean Hangul alphabet is a different block,
+        # as is Japanese Hiragana and Katakana. Those alphabets are used to write
+        # space-separated words, so they are not treated specially and handled
+        # like the all of the other languages.
+        tmp = (cp >= 0x4E00 and cp <= 0x9FFF)
+        tmp = tmp or (cp >= 0x3400 and cp <= 0x4DBF)
+        tmp = tmp or (cp >= 0x20000 and cp <= 0x2A6DF)
+        tmp = tmp or (cp >= 0x2A700 and cp <= 0x2B73F)
+        tmp = tmp or (cp >= 0x2B740 and cp <= 0x2B81F)
+        tmp = tmp or (cp >= 0x2B820 and cp <= 0x2CEAF)
+        tmp = tmp or (cp >= 0xF900 and cp <= 0xFAFF)
+        tmp = tmp or (cp >= 0x2F800 and cp <= 0x2FA1F)
+        if tmp:
+            return True
+
+        return False
+
+    def _clean_text(self, text):
+        """Performs invalid character removal and whitespace cleanup on text."""
+        output = []
+        for char in text:
+            cp = ord(char)
+            if cp == 0 or cp == 0xfffd or _is_control(char):
+                continue
+            if _is_whitespace(char):
+                output.append(' ')
+            else:
+                output.append(char)
+        return ''.join(output)
+
+
+class WordpieceTokenizer(object):
+    """Runs WordPiece tokenization."""
+
+    def __init__(self, vocab, unk_token='[UNK]', max_input_chars_per_word=100):
+        self.vocab = vocab
+        self.unk_token = unk_token
+        self.max_input_chars_per_word = max_input_chars_per_word
+
+    def tokenize(self, text):
+        """Tokenizes a piece of text into its word pieces.
+
+        This uses a greedy longest-match-first algorithm to perform tokenization
+        using the given vocabulary.
+
+        For example:
+          input = "unaffable"
+          output = ["un", "##aff", "##able"]
+
+        Args:
+          text: A single token or whitespace separated tokens. This should have
+            already been passed through `BasicTokenizer`.
+
+        Returns:
+          A list of wordpiece tokens.
+        """
+
+        output_tokens = []
+        for token in whitespace_tokenize(text):
+            chars = list(token)
+            if len(chars) > self.max_input_chars_per_word:
+                output_tokens.append(self.unk_token)
+                continue
+
+            is_bad = False
+            start = 0
+            sub_tokens = []
+            while start < len(chars):
+                end = len(chars)
+                cur_substr = None
+                while start < end:
+                    substr = ''.join(chars[start:end])
+                    if start > 0:
+                        substr = '##' + substr
+                    if substr in self.vocab:
+                        cur_substr = substr
+                        break
+                    end -= 1
+                if cur_substr is None:
+                    is_bad = True
+                    break
+                sub_tokens.append(cur_substr)
+                start = end
+
+            if is_bad:
+                output_tokens.append(self.unk_token)
+            else:
+                output_tokens.extend(sub_tokens)
+        return output_tokens
+
+
+def _is_whitespace(char):
+    """Checks whether `chars` is a whitespace character."""
+    # \t, \n, and \r are technically contorl characters but we treat them
+    # as whitespace since they are generally considered as such.
+    if char == ' ' or char == '\t' or char == '\n' or char == '\r':
+        return True
+    cat = unicodedata.category(char)
+    if cat == 'Zs':
+        return True
+    return False
+
+
+def _is_control(char):
+    """Checks whether `chars` is a control character."""
+    # These are technically control characters but we count them as whitespace
+    # characters.
+    if char == '\t' or char == '\n' or char == '\r':
+        return False
+    cat = unicodedata.category(char)
+    if cat.startswith('C'):
+        return True
+    return False
+
+
+def _is_punctuation(char):
+    """Checks whether `chars` is a punctuation character."""
+    cp = ord(char)
+    # We treat all non-letter/number ASCII as punctuation.
+    # Characters such as "^", "$", and "`" are not in the Unicode
+    # Punctuation class but we treat them as punctuation anyways, for
+    # consistency.
+    tmp = (cp >= 33 and cp <= 47)
+    tmp = tmp or (cp >= 58 and cp <= 64)
+    tmp = tmp or (cp >= 91 and cp <= 96)
+    tmp = tmp or (cp >= 123 and cp <= 126)
+    if tmp:
+        return True
+    cat = unicodedata.category(char)
+    if cat.startswith('P'):
+        return True
+    return False
+
+
+# Copyright 2018 The Open AI Team Authors and The HuggingFace Inc. team.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tokenization classes for OpenAI GPT."""
+
+try:
+    from functools import lru_cache
+except ImportError:
+    # Just a dummy decorator to get the checks to run on python2
+    # because honestly I don't want to support a byte-level unicode BPE tokenizer on python 2 right now.
+    def lru_cache():
+        return lambda func: func
+
+
+@lru_cache()
+def bytes_to_unicode():
+    """
+    Returns list of utf-8 byte and a corresponding list of unicode strings.
+    The reversible bpe codes work on unicode strings.
+    This means you need a large # of unicode characters in your vocab if you want to avoid UNKs.
+    When you're at something like a 10B token dataset you end up needing around 5K for decent coverage.
+    This is a signficant percentage of your normal, say, 32K bpe vocab.
+    To avoid that, we want lookup tables between utf-8 bytes and unicode strings.
+    And avoids mapping to whitespace/control characters the bpe code barfs on.
+    """
+    _chr = unichr if sys.version_info[0] == 2 else chr
+    bs = list(range(ord('!'),
+                    ord('~') + 1)) + list(range(
+                        ord('¡'),
+                        ord('¬') + 1)) + list(range(ord('®'),
+                                                    ord('ÿ') + 1))
+    cs = bs[:]
+    n = 0
+    for b in range(2**8):
+        if b not in bs:
+            bs.append(b)
+            cs.append(2**8 + n)
+            n += 1
+    cs = [_chr(n) for n in cs]
+    return dict(zip(bs, cs))
+
+
+def get_pairs(word):
+    """Return set of symbol pairs in a word.
+
+    Word is represented as tuple of symbols (symbols being variable-length strings).
+    """
+    pairs = set()
+    prev_char = word[0]
+    for char in word[1:]:
+        pairs.add((prev_char, char))
+        prev_char = char
+    return pairs
+
+
+class GPT2Tokenizer(object):
+    """
+    GPT-2 BPE tokenizer. Peculiarities:
+        - Byte-level BPE
+    """
+
+    def __init__(self,
+                 vocab_file,
+                 merges_file,
+                 errors='replace',
+                 special_tokens=None,
+                 max_len=None):
+        self.max_len = max_len if max_len is not None else int(1e12)
+        self.encoder = json.load(open(vocab_file))
+        self.decoder = {v: k for k, v in self.encoder.items()}
+        self.errors = errors  # how to handle errors in decoding
+        self.byte_encoder = bytes_to_unicode()
+        self.byte_decoder = {v: k for k, v in self.byte_encoder.items()}
+        bpe_data = open(merges_file, encoding='utf-8').read().split('\n')[1:-1]
+        bpe_merges = [tuple(merge.split()) for merge in bpe_data]
+        self.bpe_ranks = dict(zip(bpe_merges, range(len(bpe_merges))))
+        self.cache = {}
+
+        # Should haved added re.IGNORECASE so BPE merges can happen for capitalized versions of contractions
+        self.pat = re.compile(
+            r"""'s|'t|'re|'ve|'m|'ll|'d| ?\p{L}+| ?\p{N}+| ?[^\s\p{L}\p{N}]+|\s+(?!\S)|\s+"""
+        )
+
+        self.special_tokens = {}
+        self.special_tokens_decoder = {}
+        self.set_special_tokens(special_tokens)
+
+    def __len__(self):
+        return len(self.encoder) + len(self.special_tokens)
+
+    def set_special_tokens(self, special_tokens):
+        """ Add a list of additional tokens to the encoder.
+            The additional tokens are indexed starting from the last index of the
+            current vocabulary in the order of the `special_tokens` list.
+        """
+        if not special_tokens:
+            self.special_tokens = {}
+            self.special_tokens_decoder = {}
+            return
+        self.special_tokens = dict((tok, len(self.encoder) + i)
+                                   for i, tok in enumerate(special_tokens))
+        self.special_tokens_decoder = {
+            v: k
+            for k, v in self.special_tokens.items()
+        }
+        logger.info('Special tokens {}'.format(self.special_tokens))
+
+    def bpe(self, token):
+        if token in self.cache:
+            return self.cache[token]
+        word = tuple(token)
+        pairs = get_pairs(word)
+
+        if not pairs:
+            return token
+
+        while True:
+            bigram = min(
+                pairs, key=lambda pair: self.bpe_ranks.get(pair, float('inf')))
+            if bigram not in self.bpe_ranks:
+                break
+            first, second = bigram
+            new_word = []
+            i = 0
+            while i < len(word):
+                try:
+                    j = word.index(first, i)
+                    new_word.extend(word[i:j])
+                    i = j
+                except Exception:
+                    new_word.extend(word[i:])
+                    break
+
+                if word[i] == first and i < len(word) - 1 and word[
+                        i + 1] == second:
+                    new_word.append(first + second)
+                    i += 2
+                else:
+                    new_word.append(word[i])
+                    i += 1
+            new_word = tuple(new_word)
+            word = new_word
+            if len(word) == 1:
+                break
+            else:
+                pairs = get_pairs(word)
+        word = ' '.join(word)
+        self.cache[token] = word
+        return word
+
+    def tokenize(self, text):
+        """ Tokenize a string. """
+        bpe_tokens = []
+        for token in re.findall(self.pat, text):
+            token = ''.join(self.byte_encoder[ord(b)] for b in token
+                            if ord(b) in self.byte_encoder)
+            if token == '':
+                continue
+            bpe_tokens.extend(
+                bpe_token for bpe_token in self.bpe(token).split(' '))
+        return bpe_tokens
+
+    def convert_tokens_to_ids(self, tokens):
+        """ Converts a sequence of tokens into ids using the vocab. """
+        ids = []
+        python_version_3 = isinstance(tokens, str)
+        python_version_2 = (
+            sys.version_info[0] == 2 and isinstance(tokens, unicode))
+        if python_version_3 or python_version_2:
+            if tokens in self.special_tokens:
+                return self.special_tokens[tokens]
+            else:
+                return self.encoder.get(tokens, 0)
+        for token in tokens:
+            if token in self.special_tokens:
+                ids.append(self.special_tokens[token])
+            else:
+                ids.append(self.encoder.get(token, 0))
+        if len(ids) > self.max_len:
+            logger.warning(
+                'Token indices sequence length is longer than the specified maximum '
+                ' sequence length for this OpenAI GPT model ({} > {}). Running this'
+                ' sequence through the model will result in indexing errors'.
+                format(len(ids), self.max_len))
+        return ids
+
+    def convert_ids_to_tokens(self, ids, skip_special_tokens=False):
+        """Converts a sequence of ids in BPE tokens using the vocab."""
+        tokens = []
+        for i in ids:
+            if i in self.special_tokens_decoder:
+                if not skip_special_tokens:
+                    tokens.append(self.special_tokens_decoder[i])
+            else:
+                tokens.append(self.decoder[i])
+        return tokens
+
+    def encode(self, text):
+        return self.convert_tokens_to_ids(self.tokenize(text))
+
+    def decode(self, tokens):
+        text = ''.join([self.decoder[token] for token in tokens])
+        text = bytearray([self.byte_decoder[c] for c in text]).decode(
+            'utf-8', errors=self.errors)
+        return text
diff --git a/modelscope/trainers/nlp/space/__init__.py b/modelscope/trainers/nlp/space/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/modelscope/trainers/nlp/space/metrics/__init__.py b/modelscope/trainers/nlp/space/metrics/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/modelscope/trainers/nlp/space/metrics/metrics_tracker.py b/modelscope/trainers/nlp/space/metrics/metrics_tracker.py
new file mode 100644
index 00000000..c08eba68
--- /dev/null
+++ b/modelscope/trainers/nlp/space/metrics/metrics_tracker.py
@@ -0,0 +1,73 @@
+"""
+MetricsTracker class
+"""
+
+import math
+from collections import defaultdict
+
+
+class MetricsTracker(object):
+    """ Tracking metrics. """
+
+    def __init__(self):
+        self.metrics_val = defaultdict(float)  # 记录最新一个batch返回的指标
+        self.metrics_avg = defaultdict(float)  # 维护一个epoch内已训练batches的平均指标
+        self.num_samples = 0
+
+    def update(self, metrics, num_samples):
+        for key, val in metrics.items():
+            if val is not None:
+                val = float(val)  # [val] -> val
+                self.metrics_val[key] = val
+                avg_val = \
+                    (self.metrics_avg.get(key, 0) * self.num_samples + val * num_samples) / \
+                    (self.num_samples + num_samples)
+                self.metrics_avg[key] = avg_val
+        self.num_samples += num_samples
+
+    def clear(self):
+        self.metrics_val = defaultdict(float)
+        self.metrics_avg = defaultdict(float)
+        self.num_samples = 0
+
+    def items(self):
+        return self.metrics_avg.items()
+
+    def get(self, name):
+        if self.num_samples == 0:
+            raise ValueError('There is no data in Metrics.')
+        return self.metrics_avg.get(name)
+
+    def state_dict(self):
+        return {
+            'metrics_val': self.metrics_val,
+            'metrics_avg': self.metrics_avg,
+            'num_samples': self.num_samples,
+        }
+
+    def load_state_dict(self, state_dict):
+        self.metrics_val = state_dict['metrics_val']
+        self.metrics_avg = state_dict['metrics_avg']
+        self.num_samples = state_dict['num_samples']
+
+    def value(self):
+        metric_strs = []
+        for key, val in self.metrics_val.items():
+            metric_str = f'{key.upper()}-{val:.3f}'
+            metric_strs.append(metric_str)
+        if 'token_nll' in self.metrics_val:
+            metric_str = f"TOKEN_PPL-{math.exp(self.metrics_val['token_nll']):.3f}"
+            metric_strs.append(metric_str)
+        metric_strs = '   '.join(metric_strs)
+        return metric_strs
+
+    def summary(self):
+        metric_strs = []
+        for key, val in self.metrics_avg.items():
+            metric_str = f'{key.upper()}-{val:.3f}'
+            metric_strs.append(metric_str)
+        if 'token_nll' in self.metrics_avg:
+            metric_str = f"TOKEN_PPL-{math.exp(self.metrics_avg['token_nll']):.3f}"
+            metric_strs.append(metric_str)
+        metric_strs = '   '.join(metric_strs)
+        return metric_strs
diff --git a/modelscope/trainers/nlp/space/trainers/__init__.py b/modelscope/trainers/nlp/space/trainers/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/modelscope/trainers/nlp/space/trainers/gen_trainer.py b/modelscope/trainers/nlp/space/trainers/gen_trainer.py
new file mode 100644
index 00000000..a0cda25c
--- /dev/null
+++ b/modelscope/trainers/nlp/space/trainers/gen_trainer.py
@@ -0,0 +1,761 @@
+"""
+Trainer class.
+"""
+import logging
+import os
+import sys
+import time
+from collections import OrderedDict
+
+import json
+import numpy as np
+import torch
+from tqdm import tqdm
+from transformers.optimization import AdamW, get_linear_schedule_with_warmup
+
+import modelscope.utils.nlp.space.ontology as ontology
+from ..metrics.metrics_tracker import MetricsTracker
+
+
+def get_logger(log_path, name='default'):
+    logger = logging.getLogger(name)
+    logger.propagate = False
+    logger.setLevel(logging.DEBUG)
+
+    formatter = logging.Formatter('%(message)s')
+
+    sh = logging.StreamHandler(sys.stdout)
+    sh.setFormatter(formatter)
+    logger.addHandler(sh)
+
+    fh = logging.FileHandler(log_path, mode='w')
+    fh.setFormatter(formatter)
+    logger.addHandler(fh)
+
+    return logger
+
+
+class Trainer(object):
+
+    def __init__(self,
+                 model,
+                 to_tensor,
+                 config,
+                 logger=None,
+                 lr_scheduler=None,
+                 optimizer=None,
+                 reader=None,
+                 evaluator=None):
+        self.to_tensor = to_tensor
+
+        self.do_train = config.do_train
+        self.do_infer = config.do_infer
+        self.is_decreased_valid_metric = config.Trainer.valid_metric_name[
+            0] == '-'
+        self.valid_metric_name = config.Trainer.valid_metric_name[1:]
+        self.num_epochs = config.Trainer.num_epochs
+        # self.save_dir = config.Trainer.save_dir
+        self.log_steps = config.Trainer.log_steps
+        self.valid_steps = config.Trainer.valid_steps
+        self.save_checkpoint = config.Trainer.save_checkpoint
+        self.save_summary = config.Trainer.save_summary
+        self.lr = config.Model.lr
+        self.weight_decay = config.Model.weight_decay
+        self.batch_size = config.Trainer.batch_size
+        self.gradient_accumulation_steps = config.Model.gradient_accumulation_steps
+        self.warmup_steps = config.Model.warmup_steps
+        self.gpu = config.Trainer.gpu
+
+        self.lr_scheduler = lr_scheduler
+        self.optimizer = optimizer
+
+        self.model = model
+        self.func_model = self.model.module if self.gpu > 1 else self.model
+        self.reader = reader
+        self.evaluator = evaluator
+        self.tokenizer = reader.tokenizer
+
+        # if not os.path.exists(self.save_dir):
+        #     os.makedirs(self.save_dir)
+
+        # self.logger = logger or get_logger(os.path.join(self.save_dir, "trainer.log"), "trainer")
+        self.logger = logger or get_logger('trainer.log', 'trainer')
+
+        self.batch_metrics_tracker = MetricsTracker()
+        self.token_metrics_tracker = MetricsTracker()
+
+        self.best_valid_metric = float(
+            'inf' if self.is_decreased_valid_metric else '-inf')
+        self.epoch = 0
+
+    def decode_generated_bspn_resp(self, generated):
+        """
+        decode generated
+        return decoded ('bspn', 'resp')
+        """
+        decoded = {}
+        eos_r_id = self.reader.eos_r_id
+        eos_b_id = self.reader.eos_b_id
+
+        # eos_r may not exists if gpt2 generated repetitive words.
+        if eos_r_id in generated:
+            eos_r_idx = generated.index(eos_r_id)
+        else:
+            eos_r_idx = len(generated) - 1
+            # self.logger.info('eos_r not in generated: ' + self.tokenizer.decode(generated))
+
+        # predicted bspn, resp
+        eos_b_idx = generated.index(eos_b_id)
+        decoded['bspn'] = generated[:eos_b_idx + 1]
+        decoded['resp'] = generated[eos_b_idx + 1:eos_r_idx + 1]
+        return decoded
+
+    def decode_generated_act_resp(self, generated):
+        """
+        decode generated
+        return decoded['resp'] ('bspn', 'aspn')
+        """
+        decoded = {}
+        eos_a_id = self.reader.eos_a_id
+        eos_r_id = self.reader.eos_r_id
+        # eos_b_id = self.reader.eos_b_id
+
+        # eos_r may not exists if gpt2 generated repetitive words.
+        if eos_r_id in generated:
+            eos_r_idx = generated.index(eos_r_id)
+        else:
+            eos_r_idx = len(generated) - 1
+            msg = 'eos_r not in generated: ' + self.tokenizer.decode(generated)
+            self.logger.info(msg)
+
+        if self.reader.use_true_curr_aspn:  # only predict resp
+            decoded['resp'] = generated[:eos_r_idx + 1]
+        else:  # predicted aspn, resp
+            eos_a_idx = generated.index(eos_a_id)
+            decoded['aspn'] = generated[:eos_a_idx + 1]
+            decoded['resp'] = generated[eos_a_idx + 1:eos_r_idx + 1]
+        return decoded
+
+    def decode_generated_bspn(self, generated):
+        eos_b_id = self.reader.eos_b_id
+        if eos_b_id in generated:
+            eos_b_idx = generated.index(eos_b_id)
+        else:
+            eos_b_idx = len(generated) - 1
+        return generated[:eos_b_idx + 1]
+
+    def set_optimizers(self):
+        """
+        Setup the optimizer and the learning rate scheduler.
+
+        from transformers.Trainer
+
+        parameters from cfg: lr (1e-3); warmup_steps
+        """
+        # Prepare optimizer and schedule (linear warmup and decay)
+        no_decay = ['bias', 'norm.weight']
+        optimizer_grouped_parameters = [
+            {
+                'params': [
+                    p for n, p in self.model.named_parameters()
+                    if not any(nd in n for nd in no_decay)
+                ],
+                'weight_decay':
+                self.weight_decay,
+            },
+            {
+                'params': [
+                    p for n, p in self.model.named_parameters()
+                    if any(nd in n for nd in no_decay)
+                ],
+                'weight_decay':
+                0.0,
+            },
+        ]
+        optimizer = AdamW(optimizer_grouped_parameters, lr=self.lr)
+
+        num_training_steps = \
+            self.reader.set_stats['train']['num_training_steps_per_epoch'] \
+            * self.num_epochs \
+            // self.gradient_accumulation_steps
+        num_warmup_steps = self.warmup_steps if self.warmup_steps >= 0 else int(
+            num_training_steps * 0.1)
+        lr_scheduler = get_linear_schedule_with_warmup(
+            optimizer,
+            num_warmup_steps=num_warmup_steps,
+            num_training_steps=num_training_steps)
+
+        self.optimizer = optimizer
+        self.lr_scheduler = lr_scheduler
+
+    def train(self, train_data, dev_data):
+        # log info
+        set_stats = self.reader.set_stats['train']
+        self.logger.info('***** Running training *****')
+        self.logger.info(
+            '  Num Training steps(one turn in a batch of dialogs) per epoch = %d',
+            set_stats['num_training_steps_per_epoch'])
+        self.logger.info('  Num Turns = %d', set_stats['num_turns'])
+        self.logger.info('  Num Dialogs = %d', set_stats['num_dials'])
+        self.logger.info('  Num Epochs = %d', self.num_epochs)
+        self.logger.info('  Batch size  = %d', self.batch_size)
+        self.logger.info('  Gradient Accumulation steps = %d',
+                         self.gradient_accumulation_steps)
+        steps = set_stats[
+            'num_training_steps_per_epoch'] * self.num_epochs // self.gradient_accumulation_steps
+        msg = '  Total optimization steps = %d' % steps
+        self.logger.info(msg)
+
+        # begin training
+        num_epochs = self.num_epochs - self.epoch
+        for epoch in range(num_epochs):
+            self.train_epoch(train_data=train_data, dev_data=dev_data)
+
+    def train_epoch(self, train_data, dev_data):
+        """
+        Train an epoch.
+        """
+        raise NotImplementedError
+
+    def infer(self, data_type):
+        """
+        Inference interface.
+        """
+        raise NotImplementedError
+
+    def forward(self, turn, old_pv_turn):
+        """
+        one turn inference
+        """
+        raise NotImplementedError
+
+    def save(self, is_best=False):
+        """ save """
+        train_state = {
+            'epoch': self.epoch,
+            'best_valid_metric': self.best_valid_metric,
+            'optimizer': self.optimizer.state_dict()
+        }
+        if self.lr_scheduler is not None:
+            train_state['lr_scheduler'] = self.lr_scheduler.state_dict()
+
+        # Save checkpoint
+        if self.save_checkpoint:
+            model_file = os.path.join(self.save_dir,
+                                      f'state_epoch_{self.epoch}.model')
+            torch.save(self.model.state_dict(), model_file)
+            self.logger.info(f"Saved model state to '{model_file}'")
+
+            train_file = os.path.join(self.save_dir,
+                                      f'state_epoch_{self.epoch}.train')
+            torch.save(train_state, train_file)
+            self.logger.info(f"Saved train state to '{train_file}'")
+
+        # Save current best model
+        if is_best:
+            best_model_file = os.path.join(self.save_dir, 'best.model')
+            torch.save(self.model.state_dict(), best_model_file)
+            best_train_file = os.path.join(self.save_dir, 'best.train')
+            torch.save(train_state, best_train_file)
+            self.logger.info(
+                f"Saved best model state to '{best_model_file}' with new best valid metric "
+                f'{self.valid_metric_name.upper()}={self.best_valid_metric:.3f}'
+            )
+
+    def load(self):
+        """ load """
+
+        def _load_model_state():
+            model_state_dict = torch.load(
+                f'{self.func_model.init_checkpoint}',
+                map_location=lambda storage, loc: storage)
+
+            if 'module.' in list(model_state_dict.keys())[0]:
+                new_model_state_dict = OrderedDict()
+                for k, v in model_state_dict.items():
+                    assert k[:7] == 'module.'
+                    new_model_state_dict[k[7:]] = v
+                model_state_dict = new_model_state_dict
+
+            new_model_state_dict = OrderedDict()
+            parameters = {
+                name: param
+                for name, param in self.func_model.named_parameters()
+            }
+            for name, param in model_state_dict.items():
+                if name in parameters:
+                    if param.shape != parameters[name].shape:
+                        assert hasattr(param, 'numpy')
+                        arr = param.numpy()
+                        z = np.random.normal(
+                            scale=self.func_model.initializer_range,
+                            size=parameters[name].shape).astype('float32')
+                        if name == 'embedder.token_embedding.weight':
+                            z[-param.shape[0]:] = arr
+                            print(
+                                f'part of parameter({name}) random normlize initialize'
+                            )
+                        else:
+                            if z.shape[0] < param.shape[0]:
+                                z = arr[:z.shape[0]]
+                                print(f'part of parameter({name}) are dropped')
+                            else:
+                                z[:param.shape[0]] = arr
+                                print(
+                                    f'part of parameter({name}) random normlize initialize'
+                                )
+                        dtype, device = param.dtype, param.device
+                        z = torch.tensor(z, dtype=dtype, device=device)
+                        new_model_state_dict[name] = z
+                    else:
+                        new_model_state_dict[name] = param
+                else:
+                    print(f'parameter({name}) are dropped')
+            model_state_dict = new_model_state_dict
+
+            for name in parameters:
+                if name not in model_state_dict:
+                    if parameters[name].requires_grad:
+                        print(f'parameter({name}) random normlize initialize')
+                        z = np.random.normal(
+                            scale=self.func_model.initializer_range,
+                            size=parameters[name].shape).astype('float32')
+                        dtype, device = parameters[name].dtype, parameters[
+                            name].device
+                        model_state_dict[name] = torch.tensor(
+                            z, dtype=dtype, device=device)
+                    else:
+                        model_state_dict[name] = parameters[name]
+
+            self.func_model.load_state_dict(model_state_dict)
+            self.logger.info(
+                f"Loaded model state from '{self.func_model.init_checkpoint}.model'"
+            )
+
+        def _load_train_state():
+            train_file = f'{self.func_model.init_checkpoint}.train'
+            if os.path.exists(train_file):
+                train_state_dict = torch.load(
+                    train_file, map_location=lambda storage, loc: storage)
+                self.epoch = train_state_dict['epoch']
+                self.best_valid_metric = train_state_dict['best_valid_metric']
+                if self.optimizer is not None and 'optimizer' in train_state_dict:
+                    self.optimizer.load_state_dict(
+                        train_state_dict['optimizer'])
+                if self.lr_scheduler is not None and 'lr_scheduler' in train_state_dict:
+                    self.lr_scheduler.load_state_dict(
+                        train_state_dict['lr_scheduler'])
+                self.logger.info(
+                    f"Loaded train state from '{train_file}' with (epoch-{self.epoch} "
+                    f'best_valid_metric={self.best_valid_metric:.3f})')
+            else:
+                self.logger.info('Loaded no train state')
+
+        if self.func_model.init_checkpoint is None:
+            self.logger.info('Loaded no model !!!')
+            return
+
+        if self.do_train:
+            _load_model_state()
+            return
+
+        if self.do_infer:
+            _load_model_state()
+            _load_train_state()
+
+
+class MultiWOZTrainer(Trainer):
+
+    def __init__(self,
+                 model,
+                 to_tensor,
+                 config,
+                 logger=None,
+                 lr_scheduler=None,
+                 optimizer=None,
+                 reader=None,
+                 evaluator=None):
+        super(MultiWOZTrainer,
+              self).__init__(model, to_tensor, config, logger, lr_scheduler,
+                             optimizer, reader, evaluator)
+
+    def train_epoch(self, train_data, dev_data):
+        """
+        Train an epoch.
+        """
+        times = []
+        epoch_step = 0
+        global_step = 0
+        tr_batch_loss = 0.0
+        tr_token_loss = 0.0
+        self.epoch += 1
+        self.batch_metrics_tracker.clear()
+        self.token_metrics_tracker.clear()
+        num_training_steps = \
+            self.reader.set_stats['train']['num_training_steps_per_epoch'] // \
+            self.gradient_accumulation_steps  # similar to the original num_batches
+
+        self.model.zero_grad()
+        data_iterator = self.reader.get_data_iterator(all_batches=train_data)
+
+        for batch_idx, dial_batch in enumerate(data_iterator):
+            pv_batch = []
+            for turn_num, turn_batch in enumerate(dial_batch):
+                first_turn = (turn_num == 0)
+                samples, pv_batch = self.reader.convert_batch_turn(
+                    turn_batch, pv_batch, first_turn)
+                batch, batch_size = self.reader.collate_fn_multi_turn(
+                    samples=samples)
+                batch = type(batch)(
+                    map(lambda kv: (kv[0], self.to_tensor(kv[1])),
+                        batch.items()))
+
+                # Do a training iteration
+                start_time = time.time()
+                metrics = self.model(batch, is_training=True)
+                if self.gpu > 1:
+                    for metric in metrics:
+                        if metric is not None:
+                            assert len(metric) == self.gpu
+                    nll, token_nll, token_num = metrics
+                    metrics = {}
+
+                    token_num = torch.sum(token_num)
+                    token_nll = \
+                        torch.sum(nll) * (batch_size / self.gpu) / \
+                        token_num
+                    nll = torch.mean(nll)
+                    metrics['token_num'] = token_num
+                    metrics['token_nll'] = token_nll
+                    metrics['nll'] = nll
+                    loss = token_nll if self.func_model.token_loss else nll
+
+                    metrics['loss'] = loss
+                else:
+                    loss = metrics['loss']
+                self.func_model._optimize(
+                    loss, do_update=False, optimizer=self.optimizer)
+                metrics = {
+                    k: v.cpu().detach().numpy()
+                    if isinstance(v, torch.Tensor) else v
+                    for k, v in metrics.items()
+                }
+                token_num = metrics.pop('token_num', None)
+                # bow_num = metrics.pop("bow_num", None)
+                elapsed = time.time() - start_time
+                times.append(elapsed)
+                epoch_step += 1
+
+                tr_batch_loss += metrics['nll']
+                tr_token_loss += metrics['token_nll']
+                batch_metrics = {
+                    k: v
+                    for k, v in metrics.items() if 'token' not in k
+                }
+                token_metrics = {
+                    k: v
+                    for k, v in metrics.items() if 'token' in k
+                }
+                self.batch_metrics_tracker.update(batch_metrics, batch_size)
+                self.token_metrics_tracker.update(token_metrics, token_num)
+
+                if (epoch_step % self.gradient_accumulation_steps == 0) or \
+                        (epoch_step == self.reader.set_stats['train']['num_training_steps_per_epoch']):
+                    self.optimizer.step()
+                    self.lr_scheduler.step()
+                    self.optimizer.zero_grad()
+                    global_step += 1
+
+                    if self.log_steps > 0 and global_step % self.log_steps == 0:
+                        batch_metrics_message = self.batch_metrics_tracker.value(
+                        )
+                        token_metrics_message = self.token_metrics_tracker.value(
+                        )
+                        message_prefix = f'[Train][{self.epoch}][{global_step}/{num_training_steps}]'
+                        avg_time = f'AVG_Time-{sum(times[-self.log_steps:]) / self.log_steps:.3f}'
+                        message = '   '.join([
+                            message_prefix, batch_metrics_message,
+                            token_metrics_message, avg_time
+                        ])
+                        self.logger.info(message)
+
+        self.logger.info('-' * 150)
+        avg_batch_loss = tr_batch_loss / epoch_step
+        avg_token_loss = tr_token_loss / epoch_step
+        batch_metrics_message = self.batch_metrics_tracker.summary()
+        token_metrics_message = self.token_metrics_tracker.summary()
+        message_prefix = f'[Valid][{self.epoch}]'
+        message = '   '.join([
+            message_prefix, batch_metrics_message, token_metrics_message,
+            str(avg_batch_loss),
+            str(avg_token_loss)
+        ])
+        self.logger.info(message)
+
+        cur_valid_metric = self.batch_metrics_tracker.get(
+            self.valid_metric_name)
+        if self.is_decreased_valid_metric:
+            is_best = cur_valid_metric < self.best_valid_metric
+        else:
+            is_best = cur_valid_metric > self.best_valid_metric
+        if is_best:
+            self.best_valid_metric = cur_valid_metric
+        self.save(is_best)
+        self.logger.info('-' * 150)
+
+        return
+
+    def infer(self, data_type='test'):
+        """
+        Inference interface.
+        """
+        self.logger.info('Generation starts ...')
+        infer_save_file = os.path.join(self.save_dir,
+                                       f'infer_{self.epoch}.result.json')
+        infer_samples_save_file = os.path.join(
+            self.save_dir, f'infer_samples_{self.epoch}.result.json')
+
+        # Inference
+        result_collection = {}
+        begin_time = time.time()
+
+        eval_data = self.reader.get_eval_data(data_type)
+        set_stats = self.reader.set_stats[data_type]
+        self.logger.info('***** Running Evaluation *****')
+        self.logger.info('  Num Turns = %d', set_stats['num_turns'])
+
+        with torch.no_grad():
+            pbar = tqdm(eval_data)
+            for dial_idx, dialog in enumerate(pbar):
+                pv_turn = {}
+                for turn_idx, turn in enumerate(dialog):
+                    first_turn = (turn_idx == 0)
+                    inputs, prompt_id = self.reader.convert_turn_eval(
+                        turn, pv_turn, first_turn)
+                    batch, batch_size = self.reader.collate_fn_multi_turn(
+                        samples=[inputs])
+                    batch = type(batch)(
+                        map(lambda kv: (kv[0], self.to_tensor(kv[1])),
+                            batch.items()))
+                    if self.reader.use_true_curr_bspn:  # generate act, response
+                        max_len = 60
+                        if not self.reader.use_true_curr_aspn:
+                            max_len = 80
+                        outputs = self.func_model.infer(
+                            inputs=batch,
+                            start_id=prompt_id,
+                            eos_id=self.reader.eos_r_id,
+                            max_gen_len=max_len)
+                        # resp_gen, need to trim previous context
+                        generated = outputs[0].cpu().numpy().tolist()
+                        try:
+                            decoded = self.decode_generated_act_resp(generated)
+                        except ValueError as exception:
+                            self.logger.info(str(exception))
+                            self.logger.info(self.tokenizer.decode(generated))
+                            decoded = {'resp': [], 'bspn': [], 'aspn': []}
+                    else:  # predict bspn, access db, then generate act and resp
+                        outputs = self.func_model.infer(
+                            inputs=batch,
+                            start_id=prompt_id,
+                            eos_id=self.reader.eos_b_id,
+                            max_gen_len=60)
+                        generated_bs = outputs[0].cpu().numpy().tolist()
+                        bspn_gen = self.decode_generated_bspn(generated_bs)
+                        # check DB result
+                        if self.reader.use_true_db_pointer:  # 控制当前轮的db是否为ground truth
+                            db = turn['db']
+                        else:
+                            db_result = self.reader.bspan_to_DBpointer(
+                                self.tokenizer.decode(bspn_gen),
+                                turn['turn_domain'])
+                            assert len(turn['db']) == 4
+                            book_result = turn['db'][2]
+                            assert isinstance(db_result, str)
+                            db = \
+                                [self.reader.sos_db_id] + \
+                                self.tokenizer.convert_tokens_to_ids([db_result]) + \
+                                [book_result] + \
+                                [self.reader.eos_db_id]
+                            prompt_id = self.reader.sos_a_id
+
+                        prev_input = torch.tensor(bspn_gen + db)
+                        if self.func_model.use_gpu:
+                            prev_input = prev_input.cuda()
+                        outputs_db = self.func_model.infer(
+                            inputs=batch,
+                            start_id=prompt_id,
+                            eos_id=self.reader.eos_r_id,
+                            max_gen_len=80,
+                            prev_input=prev_input)
+                        generated_ar = outputs_db[0].cpu().numpy().tolist()
+                        try:
+                            decoded = self.decode_generated_act_resp(
+                                generated_ar)
+                            decoded['bspn'] = bspn_gen
+                        except ValueError as exception:
+                            self.logger.info(str(exception))
+                            self.logger.info(
+                                self.tokenizer.decode(generated_ar))
+                            decoded = {'resp': [], 'bspn': [], 'aspn': []}
+
+                    turn['resp_gen'] = decoded['resp']
+                    turn['bspn_gen'] = turn[
+                        'bspn'] if self.reader.use_true_curr_bspn else decoded[
+                            'bspn']
+                    turn['aspn_gen'] = turn[
+                        'aspn'] if self.reader.use_true_curr_aspn else decoded[
+                            'aspn']
+                    turn['dspn_gen'] = turn['dspn']
+
+                    pv_turn['labels'] = inputs[
+                        'labels']  # all true previous context
+                    pv_turn['resp'] = turn[
+                        'resp'] if self.reader.use_true_prev_resp else decoded[
+                            'resp']
+                    if not self.reader.use_true_curr_bspn:
+                        pv_turn['bspn'] = turn[
+                            'bspn'] if self.reader.use_true_prev_bspn else decoded[
+                                'bspn']
+                        pv_turn['db'] = turn[
+                            'db'] if self.reader.use_true_prev_bspn else db
+                    pv_turn['aspn'] = turn[
+                        'aspn'] if self.reader.use_true_prev_aspn else decoded[
+                            'aspn']
+
+                tmp_dialog_result = self.reader.inverse_transpose_turn(dialog)
+                result_collection.update(tmp_dialog_result)
+
+                # compute tmp scores
+                results, _ = self.reader.wrap_result_lm(tmp_dialog_result)
+                bleu, success, match = self.evaluator.validation_metric(
+                    results)
+                score = 0.5 * (success + match) + bleu
+                pbar.set_description(
+                    'match: %2.2f  success: %2.2f  bleu: %2.2f  score: %.2f' %
+                    (match, success, bleu, score))
+
+        # compute scores
+        results, _ = self.reader.wrap_result_lm(result_collection)
+        bleu, success, match = self.evaluator.validation_metric(results)
+        score = 0.5 * (success + match) + bleu
+
+        # log results
+        metrics_message = 'match: %2.2f  success: %2.2f  bleu: %2.2f  score: %.2f' %\
+                          (match, success, bleu, score)
+        message_prefix = f'[Infer][{self.epoch}]'
+        time_cost = f'TIME-{time.time() - begin_time:.3f}'
+        message = '   '.join([message_prefix, metrics_message, time_cost])
+        self.logger.info(message)
+
+        # save results
+        eval_results = {
+            'bleu': bleu,
+            'success': success,
+            'match': match,
+            'score': score,
+            'result': message
+        }
+        with open(infer_save_file, 'w') as fp:
+            json.dump(eval_results, fp, indent=2)
+        self.logger.info(f'Saved inference results to {infer_save_file}')
+        with open(infer_samples_save_file, 'w') as fp:
+            for sample in results:
+                line = json.dumps(sample)
+                fp.write(line)
+                fp.write('\n')
+        self.logger.info(
+            f'Saved inference samples to {infer_samples_save_file}')
+
+        return
+
+    def _get_turn_domain(self, old_pv_turn, bspn_gen_ids, first_turn):
+
+        def _get_slots(constraint):
+            domain_name = ''
+            slots = {}
+            for item in constraint:
+                if item in ontology.placeholder_tokens:
+                    continue
+                if item in ontology.all_domains_with_bracket:
+                    domain_name = item
+                    slots[domain_name] = set()
+                else:
+                    assert domain_name in ontology.all_domains_with_bracket
+                    slots[domain_name].add(item)
+            return slots
+
+        turn_domain = []
+        if first_turn and len(bspn_gen_ids) == 0:
+            turn_domain = ['[general]']
+            return turn_domain
+
+        bspn_token = self.tokenizer.convert_ids_to_tokens(bspn_gen_ids)
+        turn_slots = _get_slots(bspn_token)
+        if first_turn:
+            return list(turn_slots.keys())
+
+        assert 'bspn' in old_pv_turn
+        pv_bspn_token = self.tokenizer.convert_ids_to_tokens(
+            old_pv_turn['bspn'])
+        pv_turn_slots = _get_slots(pv_bspn_token)
+        for domain, value in turn_slots.items():
+            pv_value = pv_turn_slots[
+                domain] if domain in pv_turn_slots else set()
+            if len(value - pv_value) > 0 or len(pv_value - value):
+                turn_domain.append(domain)
+        if len(turn_domain) == 0:
+            turn_domain = list(turn_slots.keys())
+
+        return turn_domain
+
+    def forward(self, turn, old_pv_turn):
+        with torch.no_grad():
+            first_turn = True if len(old_pv_turn) == 0 else False
+            inputs, prompt_id = self.reader.convert_turn_eval(
+                turn, old_pv_turn, first_turn)
+            batch, batch_size = self.reader.collate_fn_multi_turn(
+                samples=[inputs])
+            batch = type(batch)(
+                map(lambda kv: (kv[0], self.to_tensor(kv[1])), batch.items()))
+            pv_turn = {}
+
+            outputs = self.func_model.infer(
+                inputs=batch,
+                start_id=prompt_id,
+                eos_id=self.reader.eos_b_id,
+                max_gen_len=60)
+            generated_bs = outputs[0].cpu().numpy().tolist()
+            bspn_gen = self.decode_generated_bspn(generated_bs)
+
+            turn_domain = self._get_turn_domain(old_pv_turn, bspn_gen,
+                                                first_turn)
+
+            db_result = self.reader.bspan_to_DBpointer(
+                self.tokenizer.decode(bspn_gen), turn_domain)
+            assert isinstance(db_result, str)
+            db = \
+                [self.reader.sos_db_id] + \
+                self.tokenizer.convert_tokens_to_ids([db_result]) + \
+                [self.reader.eos_db_id]
+            prompt_id = self.reader.sos_a_id
+            prev_input = torch.tensor(bspn_gen + db)
+            if self.func_model.use_gpu:
+                prev_input = prev_input.cuda()
+            outputs_db = self.func_model.infer(
+                inputs=batch,
+                start_id=prompt_id,
+                eos_id=self.reader.eos_r_id,
+                max_gen_len=80,
+                prev_input=prev_input)
+            generated_ar = outputs_db[0].cpu().numpy().tolist()
+            decoded = self.decode_generated_act_resp(generated_ar)
+            decoded['bspn'] = bspn_gen
+
+            pv_turn['labels'] = inputs['labels']
+            pv_turn['resp'] = decoded['resp']
+            pv_turn['bspn'] = decoded['bspn']
+            pv_turn['db'] = db
+            pv_turn['aspn'] = decoded['aspn']
+
+        return pv_turn
diff --git a/modelscope/trainers/nlp/space/trainers/intent_trainer.py b/modelscope/trainers/nlp/space/trainers/intent_trainer.py
new file mode 100644
index 00000000..bd43e9a5
--- /dev/null
+++ b/modelscope/trainers/nlp/space/trainers/intent_trainer.py
@@ -0,0 +1,824 @@
+"""
+Trainer class.
+"""
+
+import logging
+import os
+import sys
+import time
+from collections import OrderedDict
+
+import json
+import numpy as np
+import torch
+from tqdm import tqdm
+from transformers.optimization import AdamW, get_linear_schedule_with_warmup
+
+from modelscope.trainers.nlp.space.metrics.metrics_tracker import \
+    MetricsTracker
+from modelscope.utils.nlp.space.args import str2bool
+
+
+def get_logger(log_path, name='default'):
+    logger = logging.getLogger(name)
+    logger.propagate = False
+    logger.setLevel(logging.DEBUG)
+
+    formatter = logging.Formatter('%(message)s')
+
+    sh = logging.StreamHandler(sys.stdout)
+    sh.setFormatter(formatter)
+    logger.addHandler(sh)
+
+    fh = logging.FileHandler(log_path, mode='w')
+    fh.setFormatter(formatter)
+    logger.addHandler(fh)
+
+    return logger
+
+
+class Trainer(object):
+
+    def __init__(self,
+                 model,
+                 to_tensor,
+                 config,
+                 reader=None,
+                 logger=None,
+                 lr_scheduler=None,
+                 optimizer=None):
+        self.model = model
+        self.to_tensor = to_tensor
+        self.do_train = config.do_train
+        self.do_infer = config.do_infer
+
+        self.is_decreased_valid_metric = config.Trainer.valid_metric_name[
+            0] == '-'
+        self.valid_metric_name = config.Trainer.valid_metric_name[1:]
+        self.num_epochs = config.Trainer.num_epochs
+        self.save_dir = config.Trainer.save_dir
+        self.log_steps = config.Trainer.log_steps
+        self.valid_steps = config.Trainer.valid_steps
+        self.save_checkpoint = config.Trainer.save_checkpoint
+        self.save_summary = config.Trainer.save_summary
+        self.learning_method = config.Dataset.learning_method
+        self.weight_decay = config.Model.weight_decay
+        self.warmup_steps = config.Model.warmup_steps
+        self.batch_size_label = config.Trainer.batch_size_label
+        self.batch_size_nolabel = config.Trainer.batch_size_nolabel
+        self.gpu = config.Trainer.gpu
+        self.lr = config.Model.lr
+
+        self.model = model
+        self.func_model = self.model.module if self.gpu > 1 else self.model
+        self.reader = reader
+        self.tokenizer = reader.tokenizer
+
+        self.lr_scheduler = lr_scheduler
+        self.optimizer = optimizer
+
+        # if not os.path.exists(self.save_dir):
+        #     os.makedirs(self.save_dir)
+
+        # self.logger = logger or get_logger(os.path.join(self.save_dir, "trainer.log"), "trainer")
+        self.logger = logger or get_logger('trainer.log', 'trainer')
+
+        self.batch_metrics_tracker_label = MetricsTracker()
+        self.token_metrics_tracker_label = MetricsTracker()
+        self.batch_metrics_tracker_nolabel = MetricsTracker()
+        self.token_metrics_tracker_nolabel = MetricsTracker()
+
+        self.best_valid_metric = float(
+            'inf' if self.is_decreased_valid_metric else '-inf')
+        self.epoch = 0
+        self.batch_num = 0
+
+    def set_optimizers(self, num_training_steps_per_epoch):
+        """
+        Setup the optimizer and the learning rate scheduler.
+
+        from transformers.Trainer
+
+        parameters from cfg: lr (1e-3); warmup_steps
+        """
+        # Prepare optimizer and schedule (linear warmup and decay)
+        no_decay = ['bias', 'norm.weight']
+        optimizer_grouped_parameters = [
+            {
+                'params': [
+                    p for n, p in self.model.named_parameters()
+                    if not any(nd in n for nd in no_decay)
+                ],
+                'weight_decay':
+                self.weight_decay,
+            },
+            {
+                'params': [
+                    p for n, p in self.model.named_parameters()
+                    if any(nd in n for nd in no_decay)
+                ],
+                'weight_decay':
+                0.0,
+            },
+        ]
+        optimizer = AdamW(optimizer_grouped_parameters, lr=self.lr)
+
+        num_training_steps = num_training_steps_per_epoch * self.num_epochs
+        num_warmup_steps = self.warmup_steps if self.warmup_steps >= 0 else int(
+            num_training_steps * 0.1)
+        lr_scheduler = get_linear_schedule_with_warmup(
+            optimizer,
+            num_warmup_steps=num_warmup_steps,
+            num_training_steps=num_training_steps)
+
+        # reset optimizer and lr_scheduler
+        self.optimizer = optimizer
+        self.lr_scheduler = lr_scheduler
+
+        # log info
+        self.logger.info(
+            f'***** Running training: {self.learning_method} *****')
+        self.logger.info('  Num Epochs = %d', self.num_epochs)
+        self.logger.info(
+            '  Num Training steps(one turn in a batch of dialogs) per epoch = %d',
+            num_training_steps_per_epoch)
+        self.logger.info('  Batch size for labeled data = %d',
+                         self.batch_size_label)
+        self.logger.info('  Batch size for unlabeled data = %d',
+                         self.batch_size_nolabel)
+        self.logger.info('  Total optimization steps = %d', num_training_steps)
+        self.logger.info('  Total warmup steps = %d', num_warmup_steps)
+        self.logger.info('************************************')
+
+    def train(self,
+              train_label_iter,
+              train_nolabel_iter=None,
+              valid_label_iter=None,
+              valid_nolabel_iter=None):
+        # begin training
+        num_epochs = self.num_epochs - self.epoch
+        for epoch in range(num_epochs):
+            self.train_epoch(
+                train_label_iter=train_label_iter,
+                train_nolabel_iter=train_nolabel_iter,
+                valid_label_iter=valid_label_iter,
+                valid_nolabel_iter=valid_nolabel_iter)
+
+    def train_epoch(self, train_label_iter, train_nolabel_iter,
+                    valid_label_iter, valid_nolabel_iter):
+        """
+        Train an epoch.
+        """
+        raise NotImplementedError
+
+    def evaluate(self, data_label_iter, data_nolabel_iter, need_save=True):
+        raise NotImplementedError
+
+    def infer(self, data_iter, num_batches=None):
+        raise NotImplementedError
+
+    def save(self, is_best=False):
+        """ save """
+        train_state = {
+            'epoch': self.epoch,
+            'batch_num': self.batch_num,
+            'best_valid_metric': self.best_valid_metric,
+            'optimizer': self.optimizer.state_dict()
+        }
+        if self.lr_scheduler is not None:
+            train_state['lr_scheduler'] = self.lr_scheduler.state_dict()
+
+        # Save checkpoint
+        if self.save_checkpoint:
+            model_file = os.path.join(self.save_dir,
+                                      f'state_epoch_{self.epoch}.model')
+            torch.save(self.model.state_dict(), model_file)
+            self.logger.info(f"Saved model state to '{model_file}'")
+
+            train_file = os.path.join(self.save_dir,
+                                      f'state_epoch_{self.epoch}.train')
+            torch.save(train_state, train_file)
+            self.logger.info(f"Saved train state to '{train_file}'")
+
+        # Save current best model
+        if is_best:
+            best_model_file = os.path.join(self.save_dir, 'best.model')
+            torch.save(self.model.state_dict(), best_model_file)
+            best_train_file = os.path.join(self.save_dir, 'best.train')
+            torch.save(train_state, best_train_file)
+            self.logger.info(
+                f"Saved best model state to '{best_model_file}' with new best valid metric "
+                f'{self.valid_metric_name.upper()}={self.best_valid_metric:.3f}'
+            )
+
+    def load(self):
+        """ load """
+
+        def _load_model_state():
+            model_state_dict = torch.load(
+                f'{self.func_model.init_checkpoint}.model',
+                map_location=lambda storage, loc: storage)
+
+            if 'module.' in list(model_state_dict.keys())[0]:
+                new_model_state_dict = OrderedDict()
+                for k, v in model_state_dict.items():
+                    assert k[:7] == 'module.'
+                    new_model_state_dict[k[7:]] = v
+                model_state_dict = new_model_state_dict
+
+            new_model_state_dict = OrderedDict()
+            parameters = {
+                name: param
+                for name, param in self.func_model.named_parameters()
+            }
+            for name, param in model_state_dict.items():
+                if name in parameters:
+                    if param.shape != parameters[name].shape:
+                        assert hasattr(param, 'numpy')
+                        arr = param.numpy()
+                        z = np.random.normal(
+                            scale=self.func_model.initializer_range,
+                            size=parameters[name].shape).astype('float32')
+                        if name == 'embedder.token_embedding.weight':
+                            z[-param.shape[0]:] = arr
+                            print(
+                                f'part of parameter({name}) random normlize initialize'
+                            )
+                        else:
+                            if z.shape[0] < param.shape[0]:
+                                z = arr[:z.shape[0]]
+                                print(f'part of parameter({name}) are dropped')
+                            else:
+                                z[:param.shape[0]] = arr
+                                print(
+                                    f'part of parameter({name}) random normlize initialize'
+                                )
+                        dtype, device = param.dtype, param.device
+                        z = torch.tensor(z, dtype=dtype, device=device)
+                        new_model_state_dict[name] = z
+                    else:
+                        new_model_state_dict[name] = param
+                else:
+                    print(f'parameter({name}) are dropped')
+            model_state_dict = new_model_state_dict
+
+            for name in parameters:
+                if name not in model_state_dict:
+                    if parameters[name].requires_grad:
+                        print(f'parameter({name}) random normlize initialize')
+                        z = np.random.normal(
+                            scale=self.func_model.initializer_range,
+                            size=parameters[name].shape).astype('float32')
+                        dtype, device = parameters[name].dtype, parameters[
+                            name].device
+                        model_state_dict[name] = torch.tensor(
+                            z, dtype=dtype, device=device)
+                    else:
+                        model_state_dict[name] = parameters[name]
+
+            self.func_model.load_state_dict(model_state_dict)
+            self.logger.info(
+                f"Loaded model state from '{self.func_model.init_checkpoint}.model'"
+            )
+
+        def _load_train_state():
+            train_file = f'{self.func_model.init_checkpoint}.train'
+            if os.path.exists(train_file):
+                train_state_dict = torch.load(
+                    train_file, map_location=lambda storage, loc: storage)
+                self.epoch = train_state_dict['epoch']
+                self.best_valid_metric = train_state_dict['best_valid_metric']
+                if self.optimizer is not None and 'optimizer' in train_state_dict:
+                    self.optimizer.load_state_dict(
+                        train_state_dict['optimizer'])
+                if self.lr_scheduler is not None and 'lr_scheduler' in train_state_dict:
+                    self.lr_scheduler.load_state_dict(
+                        train_state_dict['lr_scheduler'])
+                self.logger.info(
+                    f"Loaded train state from '{train_file}' with (epoch-{self.epoch} "
+                    f'best_valid_metric={self.best_valid_metric:.3f})')
+            else:
+                self.logger.info('Loaded no train state')
+
+        if self.func_model.init_checkpoint is None:
+            self.logger.info('Loaded no model !!!')
+            return
+
+        _load_model_state()
+        _load_train_state()
+
+
+class IntentTrainer(Trainer):
+
+    def __init__(self, model, to_tensor, config, reader=None):
+        super(IntentTrainer, self).__init__(model, to_tensor, config, reader)
+        self.example = config.Model.example
+        self.can_norm = config.Trainer.can_norm
+
+    def can_normalization(self, y_pred, y_true, ex_data_iter):
+        # 预测结果，计算修正前准确率
+        acc_original = np.mean([y_pred.argmax(1) == y_true])
+        message = 'original acc: %s' % acc_original
+
+        # 评价每个预测结果的不确定性
+        k = 3
+        y_pred_topk = np.sort(y_pred, axis=1)[:, -k:]
+        y_pred_topk /= y_pred_topk.sum(axis=1, keepdims=True)
+        y_pred_uncertainty =\
+            -(y_pred_topk * np.log(y_pred_topk)).sum(1) / np.log(k)
+
+        # 选择阈值，划分高、低置信度两部分
+        # print(np.sort(y_pred_uncertainty)[-100:].tolist())
+        threshold = 0.7
+        y_pred_confident = y_pred[y_pred_uncertainty < threshold]
+        y_pred_unconfident = y_pred[y_pred_uncertainty >= threshold]
+        y_true_confident = y_true[y_pred_uncertainty < threshold]
+        y_true_unconfident = y_true[y_pred_uncertainty >= threshold]
+
+        # 显示两部分各自的准确率
+        # 一般而言，高置信度集准确率会远高于低置信度的
+        acc_confident = (y_pred_confident.argmax(1) == y_true_confident).mean() \
+            if len(y_true_confident) else 0.
+        acc_unconfident = (y_pred_unconfident.argmax(1) == y_true_unconfident).mean() \
+            if len(y_true_unconfident) else 0.
+        message += '   (%s) confident acc: %s' % (len(y_true_confident),
+                                                  acc_confident)
+        message += '   (%s) unconfident acc: %s' % (len(y_true_unconfident),
+                                                    acc_unconfident)
+
+        # 从训练集统计先验分布
+        prior = np.zeros(self.func_model.num_intent)
+        for _, (batch, batch_size) in ex_data_iter:
+            for intent_label in batch['intent_label']:
+                prior[intent_label] += 1.
+
+        prior /= prior.sum()
+
+        # 逐个修改低置信度样本，并重新评价准确率
+        right, alpha, iters = 0, 1, 1
+        for i, y in enumerate(y_pred_unconfident):
+            Y = np.concatenate([y_pred_confident, y[None]], axis=0)
+            for j in range(iters):
+                Y = Y**alpha
+                Y /= Y.mean(axis=0, keepdims=True)
+                Y *= prior[None]
+                Y /= Y.sum(axis=1, keepdims=True)
+            y = Y[-1]
+            if y.argmax() == y_true_unconfident[i]:
+                right += 1
+
+        # 输出修正后的准确率
+        acc_final = \
+            (acc_confident * len(y_pred_confident) + right) / \
+            len(y_pred)
+        if len(y_pred_unconfident):
+            message += '   new unconfident acc: %s' % (
+                right / len(y_pred_unconfident))
+        else:
+            message += '   no unconfident predictions'
+        message += '   final acc: %s' % acc_final
+        return acc_original, acc_final, message
+
+    def train_epoch(self, train_label_iter, train_nolabel_iter,
+                    valid_label_iter, valid_nolabel_iter):
+        """
+        Train an epoch.
+        """
+        times = []
+        self.epoch += 1
+        self.batch_metrics_tracker_label.clear()
+        self.token_metrics_tracker_label.clear()
+        self.batch_metrics_tracker_nolabel.clear()
+        self.token_metrics_tracker_nolabel.clear()
+
+        num_label_batches = len(train_label_iter)
+        num_nolabel_batches = len(
+            train_nolabel_iter) if train_nolabel_iter is not None else 0
+        num_batches = max(num_label_batches, num_nolabel_batches)
+
+        train_label_iter_loop = iter(train_label_iter)
+        train_nolabel_iter_loop = iter(
+            train_nolabel_iter) if train_nolabel_iter is not None else None
+        report_for_unlabeled_data = True if train_nolabel_iter is not None else False
+
+        for batch_id in range(1, num_batches + 1):
+            # Do a training iteration
+            start_time = time.time()
+            batch_list, batch_size_list, with_label_list, loss_list, metrics_list = [], [], [], [], []
+            data_file_list = []
+
+            # collect batch for labeled data
+            try:
+                data_file_label, (
+                    batch_label,
+                    batch_size_label) = next(train_label_iter_loop)
+            except StopIteration:
+                train_label_iter_loop = iter(train_label_iter)
+                data_file_label, (
+                    batch_label,
+                    batch_size_label) = next(train_label_iter_loop)
+            batch_list.append(batch_label)
+            batch_size_list.append(batch_size_label)
+            with_label_list.append(True)
+            data_file_list.append(data_file_label)
+
+            # collect batch for unlabeled data
+            if train_nolabel_iter is not None:
+                try:
+                    data_file_nolabel, (
+                        batch_nolabel,
+                        batch_size_nolabel) = next(train_nolabel_iter_loop)
+                except StopIteration:
+                    train_nolabel_iter_loop = iter(train_nolabel_iter)
+                    data_file_nolabel, (
+                        batch_nolabel,
+                        batch_size_nolabel) = next(train_nolabel_iter_loop)
+                batch_list.append(batch_nolabel)
+                batch_size_list.append(batch_size_nolabel)
+                with_label_list.append(False)
+                data_file_list.append(data_file_nolabel)
+
+            # forward labeled batch and unlabeled batch and collect outputs, respectively
+            for (batch, batch_size, with_label, data_file) in \
+                    zip(batch_list, batch_size_list, with_label_list, data_file_list):
+                batch = type(batch)(
+                    map(lambda kv: (kv[0], self.to_tensor(kv[1])),
+                        batch.items()))
+                if self.example and with_label:
+                    current_dataset = train_label_iter.data_file_to_dataset[
+                        data_file]
+                    example_batch = self.reader.retrieve_examples(
+                        dataset=current_dataset,
+                        labels=batch['intent_label'],
+                        inds=batch['ids'],
+                        task='intent')
+                    example_batch = type(example_batch)(
+                        map(lambda kv: (kv[0], self.to_tensor(kv[1])),
+                            example_batch.items()))
+                    for k, v in example_batch.items():
+                        batch[k] = v
+                batch['epoch'] = self.epoch
+                batch['num_steps'] = self.batch_num
+                metrics = self.model(
+                    batch,
+                    is_training=True,
+                    with_label=with_label,
+                    data_file=data_file)
+                loss, metrics = self.balance_metrics(
+                    metrics=metrics, batch_size=batch_size)
+                loss_list.append(loss)
+                metrics_list.append(metrics)
+
+            # combine loss for labeled data and unlabeled data
+            # TODO change the computation of combined loss of labeled batch and unlabeled batch
+            loss = loss_list[0] if len(
+                loss_list) == 1 else loss_list[0] + loss_list[1]
+
+            # optimization procedure
+            self.func_model._optimize(
+                loss, optimizer=self.optimizer, lr_scheduler=self.lr_scheduler)
+            elapsed = time.time() - start_time
+            times.append(elapsed)
+            self.batch_num += 1
+
+            # track metrics and log temporary message
+            for (batch_size, metrics,
+                 with_label) in zip(batch_size_list, metrics_list,
+                                    with_label_list):
+                self.track_and_log_message(
+                    metrics=metrics,
+                    batch_id=batch_id,
+                    batch_size=batch_size,
+                    num_batches=num_batches,
+                    times=times,
+                    with_label=with_label)
+
+            # evaluate
+            if self.valid_steps > 0 and valid_label_iter is not None and valid_nolabel_iter is not None \
+                    and batch_id % self.valid_steps == 0:
+                self.evaluate(
+                    data_label_iter=valid_label_iter,
+                    data_nolabel_iter=valid_nolabel_iter)
+
+        # compute accuracy for valid dataset
+        accuracy = self.infer(
+            data_iter=valid_label_iter, ex_data_iter=train_label_iter)
+
+        # report summary message and save checkpoints
+        self.save_and_log_message(
+            report_for_unlabeled_data, cur_valid_metric=-accuracy)
+
+    def forward(self, batch):
+        pred = []
+
+        with torch.no_grad():
+            batch = type(batch)(
+                map(lambda kv: (kv[0], self.to_tensor(kv[1])), batch.items()))
+            result = self.model.infer(inputs=batch)
+            result = {
+                name: result[name].cpu().detach().numpy()
+                for name in result
+            }
+            intent_probs = result['intent_probs']
+            if self.can_norm:
+                pred += [intent_probs]
+            else:
+                pred += np.argmax(intent_probs, axis=1).tolist()
+
+        return pred
+
+    def infer(self, data_iter, num_batches=None, ex_data_iter=None):
+        """
+        Inference interface.
+        """
+        self.logger.info('Generation starts ...')
+        infer_save_file = os.path.join(self.save_dir,
+                                       f'infer_{self.epoch}.result.json')
+
+        # Inference
+        batch_cnt = 0
+        pred, true = [], []
+        outputs, labels = [], []
+        begin_time = time.time()
+
+        with torch.no_grad():
+            if self.example:
+                for _, (batch, batch_size) in tqdm(
+                        ex_data_iter, desc='Building train memory.'):
+                    batch = type(batch)(
+                        map(lambda kv: (kv[0], self.to_tensor(kv[1])),
+                            batch.items()))
+                    result = self.model.infer(inputs=batch)
+                    result = {
+                        name: result[name].cpu().detach().numpy()
+                        for name in result
+                    }
+                    outputs.append(torch.from_numpy(result['features']))
+                    labels += batch['intent_label'].tolist()
+
+                mem = torch.cat(outputs, dim=0)
+                mem = mem.cuda() if self.func_model.use_gpu else mem
+                labels = torch.LongTensor(labels).unsqueeze(0)
+                labels = labels.cuda() if self.func_model.use_gpu else labels
+                self.logger.info(f'Memory size: {mem.size()}')
+
+            for _, (batch, batch_size) in tqdm(data_iter, total=num_batches):
+                batch = type(batch)(
+                    map(lambda kv: (kv[0], self.to_tensor(kv[1])),
+                        batch.items()))
+                result = self.model.infer(inputs=batch)
+                result = {
+                    name: result[name].cpu().detach().numpy()
+                    for name in result
+                }
+
+                if self.example:
+                    features = torch.from_numpy(result['features'])
+                    features = features.cuda(
+                    ) if self.func_model.use_gpu else features
+                    probs = torch.softmax(features.mm(mem.t()), dim=-1)
+                    intent_probs = torch.zeros(
+                        probs.size(0), self.func_model.num_intent)
+                    intent_probs = intent_probs.cuda(
+                    ) if self.func_model.use_gpu else intent_probs
+                    intent_probs = intent_probs.scatter_add(
+                        -1, labels.repeat(probs.size(0), 1), probs)
+                    intent_probs = intent_probs.cpu().detach().numpy()
+                else:
+                    intent_probs = result['intent_probs']
+
+                if self.can_norm:
+                    pred += [intent_probs]
+                    true += batch['intent_label'].cpu().detach().tolist()
+                else:
+                    pred += np.argmax(intent_probs, axis=1).tolist()
+                    true += batch['intent_label'].cpu().detach().tolist()
+
+                batch_cnt += 1
+                if batch_cnt == num_batches:
+                    break
+
+        if self.can_norm:
+            true = np.array(true)
+            pred = np.concatenate(pred, axis=0)
+            acc_original, acc_final, message = self.can_normalization(
+                y_pred=pred, y_true=true, ex_data_iter=ex_data_iter)
+            accuracy = max(acc_original, acc_final)
+            infer_results = {
+                'accuracy': accuracy,
+                'pred_labels': pred.tolist(),
+                'message': message
+            }
+            metrics_message = f'Accuracy: {accuracy}   {message}'
+        else:
+            accuracy = sum(p == t for p, t in zip(pred, true)) / len(pred)
+            infer_results = {'accuracy': accuracy, 'pred_labels': pred}
+            metrics_message = f'Accuracy: {accuracy}'
+
+        self.logger.info(f'Saved inference results to {infer_save_file}')
+        with open(infer_save_file, 'w') as fp:
+            json.dump(infer_results, fp, indent=2)
+        message_prefix = f'[Infer][{self.epoch}]'
+        time_cost = f'TIME-{time.time() - begin_time:.3f}'
+        message = '   '.join([message_prefix, metrics_message, time_cost])
+        self.logger.info(message)
+        return accuracy
+
+    def track_and_log_message(self, metrics, batch_id, batch_size, num_batches,
+                              times, with_label):
+        # track metrics
+        batch_metrics_tracker = self.batch_metrics_tracker_label if with_label else self.batch_metrics_tracker_nolabel
+        token_metrics_tracker = self.token_metrics_tracker_label if with_label else self.token_metrics_tracker_nolabel
+
+        metrics = {
+            k: v.cpu().detach().numpy() if isinstance(v, torch.Tensor) else v
+            for k, v in metrics.items()
+        }
+        mlm_num = metrics.pop('mlm_num', 0)
+
+        batch_metrics = {k: v for k, v in metrics.items() if 'token' not in k}
+        token_metrics = {k: v for k, v in metrics.items() if 'token' in k}
+        batch_metrics_tracker.update(batch_metrics, batch_size)
+        token_metrics_tracker.update(token_metrics, mlm_num)
+
+        # log message
+        if self.log_steps > 0 and batch_id % self.log_steps == 0:
+            batch_metrics_message = batch_metrics_tracker.value()
+            token_metrics_message = token_metrics_tracker.value()
+            label_prefix = 'Labeled' if with_label else 'Unlabeled'
+            message_prefix = f'[Train][{self.epoch}][{batch_id}/{num_batches}][{label_prefix}]'
+            avg_time = f'AVG_Time-{sum(times[-self.log_steps:]) / self.log_steps:.3f}'
+            message = '   '.join([
+                message_prefix, batch_metrics_message, token_metrics_message,
+                avg_time
+            ])
+            self.logger.info(message)
+
+    def save_and_log_message(self,
+                             report_for_unlabeled_data,
+                             cur_valid_metric=None):
+        # report message
+        batch_metrics_message = self.batch_metrics_tracker_label.summary()
+        token_metrics_message = self.token_metrics_tracker_label.summary()
+        message_prefix = f'[Valid][{self.epoch}][Labeled]'
+        message = '   '.join(
+            [message_prefix, batch_metrics_message, token_metrics_message])
+        self.logger.info(message)
+        if report_for_unlabeled_data:
+            batch_metrics_message = self.batch_metrics_tracker_nolabel.summary(
+            )
+            token_metrics_message = self.token_metrics_tracker_nolabel.summary(
+            )
+            message_prefix = f'[Valid][{self.epoch}][Unlabeled]'
+            message = '   '.join(
+                [message_prefix, batch_metrics_message, token_metrics_message])
+            self.logger.info(message)
+
+        # save checkpoints
+        assert cur_valid_metric is not None
+        if self.is_decreased_valid_metric:
+            is_best = cur_valid_metric < self.best_valid_metric
+        else:
+            is_best = cur_valid_metric > self.best_valid_metric
+        if is_best:
+            self.best_valid_metric = cur_valid_metric
+        self.save(is_best)
+
+    def balance_metrics(self, metrics, batch_size):
+        if self.gpu > 1:
+            for metric in metrics:
+                if metric is not None:
+                    assert len(metric) == self.gpu
+
+            intent_loss, mlm, token_mlm, mlm_num, kl, con = metrics
+            metrics = {}
+
+            intent_loss = torch.mean(intent_loss)
+            metrics['intent_loss'] = intent_loss
+            loss = intent_loss
+
+            if mlm is not None:
+                mlm_num = torch.sum(mlm_num)
+                token_mlm = torch.sum(mlm) * (batch_size / self.gpu) / mlm_num
+                mlm = torch.mean(mlm)
+                metrics['mlm_num'] = mlm_num
+                metrics['token_mlm'] = token_mlm
+                metrics['mlm'] = mlm
+                loss = loss + (token_mlm if self.func_model.token_loss else
+                               mlm) * self.func_model.mlm_ratio
+
+            if kl is not None:
+                kl = torch.mean(kl)
+                metrics['kl'] = kl
+                loss = loss + kl * self.func_model.kl_ratio
+
+            if con is not None:
+                con = torch.mean(con)
+                metrics['con'] = con
+                loss = loss + con
+
+            metrics['loss'] = loss
+
+        assert 'loss' in metrics
+        return metrics['loss'], metrics
+
+    def load(self):
+        """ load """
+
+        def _load_model_state():
+            model_state_dict = torch.load(
+                f'{self.func_model.init_checkpoint}',
+                map_location=lambda storage, loc: storage)
+
+            if 'module.' in list(model_state_dict.keys())[0]:
+                new_model_state_dict = OrderedDict()
+                for k, v in model_state_dict.items():
+                    assert k[:7] == 'module.'
+                    new_model_state_dict[k[7:]] = v
+                model_state_dict = new_model_state_dict
+
+            new_model_state_dict = OrderedDict()
+            parameters = {
+                name: param
+                for name, param in self.func_model.named_parameters()
+            }
+            for name, param in model_state_dict.items():
+                if name in parameters:
+                    if param.shape != parameters[name].shape:
+                        assert hasattr(param, 'numpy')
+                        arr = param.numpy()
+                        z = np.random.normal(
+                            scale=self.func_model.initializer_range,
+                            size=parameters[name].shape).astype('float32')
+                        if name == 'embedder.token_embedding.weight':
+                            z[-param.shape[0]:] = arr
+                            print(
+                                f'part of parameter({name}) random normlize initialize'
+                            )
+                        else:
+                            if z.shape[0] < param.shape[0]:
+                                z = arr[:z.shape[0]]
+                                print(f'part of parameter({name}) are dropped')
+                            else:
+                                z[:param.shape[0]] = arr
+                                print(
+                                    f'part of parameter({name}) random normlize initialize'
+                                )
+                        dtype, device = param.dtype, param.device
+                        z = torch.tensor(z, dtype=dtype, device=device)
+                        new_model_state_dict[name] = z
+                    else:
+                        new_model_state_dict[name] = param
+                else:
+                    print(f'parameter({name}) are dropped')
+            model_state_dict = new_model_state_dict
+
+            for name in parameters:
+                if name not in model_state_dict:
+                    if parameters[name].requires_grad:
+                        print(f'parameter({name}) random normlize initialize')
+                        z = np.random.normal(
+                            scale=self.func_model.initializer_range,
+                            size=parameters[name].shape).astype('float32')
+                        dtype, device = parameters[name].dtype, parameters[
+                            name].device
+                        model_state_dict[name] = torch.tensor(
+                            z, dtype=dtype, device=device)
+                    else:
+                        model_state_dict[name] = parameters[name]
+
+            self.func_model.load_state_dict(model_state_dict)
+            self.logger.info(
+                f"Loaded model state from '{self.func_model.init_checkpoint}.model'"
+            )
+
+        def _load_train_state():
+            train_file = f'{self.func_model.init_checkpoint}.train'
+            if os.path.exists(train_file):
+                train_state_dict = torch.load(
+                    train_file, map_location=lambda storage, loc: storage)
+                self.epoch = train_state_dict['epoch']
+                self.best_valid_metric = train_state_dict['best_valid_metric']
+                if self.optimizer is not None and 'optimizer' in train_state_dict:
+                    self.optimizer.load_state_dict(
+                        train_state_dict['optimizer'])
+                if self.lr_scheduler is not None and 'lr_scheduler' in train_state_dict:
+                    self.lr_scheduler.load_state_dict(
+                        train_state_dict['lr_scheduler'])
+                self.logger.info(
+                    f"Loaded train state from '{train_file}' with (epoch-{self.epoch} "
+                    f'best_valid_metric={self.best_valid_metric:.3f})')
+            else:
+                self.logger.info('Loaded no train state')
+
+        if self.func_model.init_checkpoint is None:
+            self.logger.info('Loaded no model !!!')
+            return
+
+        if self.do_train:
+            _load_model_state()
+            return
+
+        if self.do_infer:
+            _load_model_state()
+            _load_train_state()
diff --git a/modelscope/utils/constant.py b/modelscope/utils/constant.py
index be9cb403..6ef6b010 100644
--- a/modelscope/utils/constant.py
+++ b/modelscope/utils/constant.py
@@ -44,6 +44,8 @@ class Tasks(object):
     token_classification = 'token-classification'
     conversational = 'conversational'
     text_generation = 'text-generation'
+    dialog_modeling = 'dialog-modeling'
+    dialog_intent_prediction = 'dialog-intent-prediction'
     table_question_answering = 'table-question-answering'
     feature_extraction = 'feature-extraction'
     sentence_similarity = 'sentence-similarity'
diff --git a/modelscope/utils/nlp/__init__.py b/modelscope/utils/nlp/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/modelscope/utils/nlp/space/__init__.py b/modelscope/utils/nlp/space/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/modelscope/utils/nlp/space/args.py b/modelscope/utils/nlp/space/args.py
new file mode 100644
index 00000000..d9e91e74
--- /dev/null
+++ b/modelscope/utils/nlp/space/args.py
@@ -0,0 +1,66 @@
+"""
+Parse argument.
+"""
+
+import argparse
+
+import json
+
+
+def str2bool(v):
+    if v.lower() in ('yes', 'true', 't', 'y', '1'):
+        return True
+    elif v.lower() in ('no', 'false', 'f', 'n', '0'):
+        return False
+    else:
+        raise argparse.ArgumentTypeError('Unsupported value encountered.')
+
+
+class HParams(dict):
+    """ Hyper-parameters class
+
+    Store hyper-parameters in training / infer / ... scripts.
+    """
+
+    def __getattr__(self, name):
+        if name in self.keys():
+            return self[name]
+        for v in self.values():
+            if isinstance(v, HParams):
+                if name in v:
+                    return v[name]
+        raise AttributeError(f"'HParams' object has no attribute '{name}'")
+
+    def __setattr__(self, name, value):
+        self[name] = value
+
+    def save(self, filename):
+        with open(filename, 'w', encoding='utf-8') as fp:
+            json.dump(self, fp, ensure_ascii=False, indent=4, sort_keys=False)
+
+    def load(self, filename):
+        with open(filename, 'r', encoding='utf-8') as fp:
+            params_dict = json.load(fp)
+        for k, v in params_dict.items():
+            if isinstance(v, dict):
+                self[k].update(HParams(v))
+            else:
+                self[k] = v
+
+
+def parse_args(parser):
+    """ Parse hyper-parameters from cmdline. """
+    parsed = parser.parse_args()
+    args = HParams()
+    optional_args = parser._action_groups[1]
+    for action in optional_args._group_actions[1:]:
+        arg_name = action.dest
+        args[arg_name] = getattr(parsed, arg_name)
+    for group in parser._action_groups[2:]:
+        group_args = HParams()
+        for action in group._group_actions:
+            arg_name = action.dest
+            group_args[arg_name] = getattr(parsed, arg_name)
+        if len(group_args) > 0:
+            args[group.title] = group_args
+    return args
diff --git a/modelscope/utils/nlp/space/criterions.py b/modelscope/utils/nlp/space/criterions.py
new file mode 100644
index 00000000..60f98457
--- /dev/null
+++ b/modelscope/utils/nlp/space/criterions.py
@@ -0,0 +1,52 @@
+import torch
+import torch.nn.functional as F
+from torch.nn.modules.loss import _Loss
+
+
+def compute_kl_loss(p, q, filter_scores=None):
+    p_loss = F.kl_div(
+        F.log_softmax(p, dim=-1), F.softmax(q, dim=-1), reduction='none')
+    q_loss = F.kl_div(
+        F.log_softmax(q, dim=-1), F.softmax(p, dim=-1), reduction='none')
+
+    # You can choose whether to use function "sum" and "mean" depending on your task
+    p_loss = p_loss.sum(dim=-1)
+    q_loss = q_loss.sum(dim=-1)
+
+    # mask is for filter mechanism
+    if filter_scores is not None:
+        p_loss = filter_scores * p_loss
+        q_loss = filter_scores * q_loss
+
+    p_loss = p_loss.mean()
+    q_loss = q_loss.mean()
+
+    loss = (p_loss + q_loss) / 2
+    return loss
+
+
+class CatKLLoss(_Loss):
+    """
+    CatKLLoss
+    """
+
+    def __init__(self, reduction='mean'):
+        super(CatKLLoss, self).__init__()
+        assert reduction in ['none', 'sum', 'mean']
+        self.reduction = reduction
+
+    def forward(self, log_qy, log_py):
+        """
+        KL(qy|py) = Eq[qy * log(q(y) / p(y))]
+
+        log_qy: (batch_size, latent_size)
+        log_py: (batch_size, latent_size)
+        """
+        qy = torch.exp(log_qy)
+        kl = torch.sum(qy * (log_qy - log_py), dim=1)
+
+        if self.reduction == 'mean':
+            kl = kl.mean()
+        elif self.reduction == 'sum':
+            kl = kl.sum()
+        return kl
diff --git a/modelscope/utils/nlp/space/db_ops.py b/modelscope/utils/nlp/space/db_ops.py
new file mode 100644
index 00000000..2168c079
--- /dev/null
+++ b/modelscope/utils/nlp/space/db_ops.py
@@ -0,0 +1,321 @@
+import os
+import random
+import sqlite3
+
+import json
+
+from .ontology import all_domains, db_domains
+
+
+class MultiWozDB(object):
+
+    def __init__(self, db_dir, db_paths):
+        self.dbs = {}
+        self.sql_dbs = {}
+        for domain in all_domains:
+            with open(os.path.join(db_dir, db_paths[domain]), 'r') as f:
+                self.dbs[domain] = json.loads(f.read().lower())
+
+    def oneHotVector(self, domain, num):
+        """Return number of available entities for particular domain."""
+        vector = [0, 0, 0, 0]
+        if num == '':
+            return vector
+        if domain != 'train':
+            if num == 0:
+                vector = [1, 0, 0, 0]
+            elif num == 1:
+                vector = [0, 1, 0, 0]
+            elif num <= 3:
+                vector = [0, 0, 1, 0]
+            else:
+                vector = [0, 0, 0, 1]
+        else:
+            if num == 0:
+                vector = [1, 0, 0, 0]
+            elif num <= 5:
+                vector = [0, 1, 0, 0]
+            elif num <= 10:
+                vector = [0, 0, 1, 0]
+            else:
+                vector = [0, 0, 0, 1]
+        return vector
+
+    def addBookingPointer(self, turn_da):
+        """Add information about availability of the booking option."""
+        # Booking pointer
+        # Do not consider booking two things in a single turn.
+        vector = [0, 0]
+        if turn_da.get('booking-nobook'):
+            vector = [1, 0]
+        if turn_da.get('booking-book') or turn_da.get('train-offerbooked'):
+            vector = [0, 1]
+        return vector
+
+    def addDBPointer(self, domain, match_num, return_num=False):
+        """Create database pointer for all related domains."""
+        # if turn_domains is None:
+        #     turn_domains = db_domains
+        if domain in db_domains:
+            vector = self.oneHotVector(domain, match_num)
+        else:
+            vector = [0, 0, 0, 0]
+        return vector
+
+    def addDBIndicator(self, domain, match_num, return_num=False):
+        """Create database indicator for all related domains."""
+        # if turn_domains is None:
+        #     turn_domains = db_domains
+        if domain in db_domains:
+            vector = self.oneHotVector(domain, match_num)
+        else:
+            vector = [0, 0, 0, 0]
+
+        # '[db_nores]', '[db_0]', '[db_1]', '[db_2]', '[db_3]'
+        if vector == [0, 0, 0, 0]:
+            indicator = '[db_nores]'
+        else:
+            indicator = '[db_%s]' % vector.index(1)
+        return indicator
+
+    def get_match_num(self, constraints, return_entry=False):
+        """Create database pointer for all related domains."""
+        match = {'general': ''}
+        entry = {}
+        # if turn_domains is None:
+        #     turn_domains = db_domains
+        for domain in all_domains:
+            match[domain] = ''
+            if domain in db_domains and constraints.get(domain):
+                matched_ents = self.queryJsons(domain, constraints[domain])
+                match[domain] = len(matched_ents)
+                if return_entry:
+                    entry[domain] = matched_ents
+        if return_entry:
+            return entry
+        return match
+
+    def pointerBack(self, vector, domain):
+        # multi domain implementation
+        # domnum = cfg.domain_num
+        if domain.endswith(']'):
+            domain = domain[1:-1]
+        if domain != 'train':
+            nummap = {0: '0', 1: '1', 2: '2-3', 3: '>3'}
+        else:
+            nummap = {0: '0', 1: '1-5', 2: '6-10', 3: '>10'}
+        if vector[:4] == [0, 0, 0, 0]:
+            report = ''
+        else:
+            num = vector.index(1)
+            report = domain + ': ' + nummap[num] + '; '
+
+        if vector[-2] == 0 and vector[-1] == 1:
+            report += 'booking: ok'
+        if vector[-2] == 1 and vector[-1] == 0:
+            report += 'booking: unable'
+
+        return report
+
+    def queryJsons(self,
+                   domain,
+                   constraints,
+                   exactly_match=True,
+                   return_name=False):
+        """Returns the list of entities for a given domain
+        based on the annotation of the belief state
+        constraints: dict e.g. {'pricerange': 'cheap', 'area': 'west'}
+        """
+        # query the db
+        if domain == 'taxi':
+            return [{
+                'taxi_colors':
+                random.choice(self.dbs[domain]['taxi_colors']),
+                'taxi_types':
+                random.choice(self.dbs[domain]['taxi_types']),
+                'taxi_phone': [random.randint(1, 9) for _ in range(10)]
+            }]
+        if domain == 'police':
+            return self.dbs['police']
+        if domain == 'hospital':
+            if constraints.get('department'):
+                for entry in self.dbs['hospital']:
+                    if entry.get('department') == constraints.get(
+                            'department'):
+                        return [entry]
+            else:
+                return []
+
+        valid_cons = False
+        for v in constraints.values():
+            if v not in ['not mentioned', '']:
+                valid_cons = True
+        if not valid_cons:
+            return []
+
+        match_result = []
+
+        if 'name' in constraints:
+            for db_ent in self.dbs[domain]:
+                if 'name' in db_ent:
+                    cons = constraints['name']
+                    dbn = db_ent['name']
+                    if cons == dbn:
+                        db_ent = db_ent if not return_name else db_ent['name']
+                        match_result.append(db_ent)
+                        return match_result
+
+        for db_ent in self.dbs[domain]:
+            match = True
+            for s, v in constraints.items():
+                if s == 'name':
+                    continue
+                if s in ['people', 'stay'] or (domain == 'hotel' and s == 'day') or \
+                        (domain == 'restaurant' and s in ['day', 'time']):
+                    # 因为这些inform slot属于book info，而数据库中没有这些slot；
+                    # 能否book是根据user goal中的信息判断，而非通过数据库查询；
+                    continue
+
+                skip_case = {
+                    "don't care": 1,
+                    "do n't care": 1,
+                    'dont care': 1,
+                    'not mentioned': 1,
+                    'dontcare': 1,
+                    '': 1
+                }
+                if skip_case.get(v):
+                    continue
+
+                if s not in db_ent:
+                    # logging.warning('Searching warning: slot %s not in %s db'%(s, domain))
+                    match = False
+                    break
+
+                # v = 'guesthouse' if v == 'guest house' else v
+                # v = 'swimmingpool' if v == 'swimming pool' else v
+                v = 'yes' if v == 'free' else v
+
+                if s in ['arrive', 'leave']:
+                    try:
+                        h, m = v.split(
+                            ':'
+                        )  # raise error if time value is not xx:xx format
+                        v = int(h) * 60 + int(m)
+                    except Exception:
+                        match = False
+                        break
+                    time = int(db_ent[s].split(':')[0]) * 60 + int(
+                        db_ent[s].split(':')[1])
+                    if s == 'arrive' and v > time:
+                        match = False
+                    if s == 'leave' and v < time:
+                        match = False
+                else:
+                    if exactly_match and v != db_ent[s]:
+                        match = False
+                        break
+                    elif v not in db_ent[s]:
+                        match = False
+                        break
+
+            if match:
+                match_result.append(db_ent)
+
+        if not return_name:
+            return match_result
+        else:
+            if domain == 'train':
+                match_result = [e['id'] for e in match_result]
+            else:
+                match_result = [e['name'] for e in match_result]
+            return match_result
+
+    def querySQL(self, domain, constraints):
+        if not self.sql_dbs:
+            for dom in db_domains:
+                db = 'db/{}-dbase.db'.format(dom)
+                conn = sqlite3.connect(db)
+                c = conn.cursor()
+                self.sql_dbs[dom] = c
+
+        sql_query = 'select * from {}'.format(domain)
+
+        flag = True
+        for key, val in constraints.items():
+            if val == '' \
+                    or val == 'dontcare' \
+                    or val == 'not mentioned' \
+                    or val == "don't care" \
+                    or val == 'dont care' \
+                    or val == "do n't care":
+                pass
+            else:
+                if flag:
+                    sql_query += ' where '
+                    val2 = val.replace("'", "''")
+                    # val2 = normalize(val2)
+                    if key == 'leaveAt':
+                        sql_query += r' ' + key + ' > ' + r"'" + val2 + r"'"
+                    elif key == 'arriveBy':
+                        sql_query += r' ' + key + ' < ' + r"'" + val2 + r"'"
+                    else:
+                        sql_query += r' ' + key + '=' + r"'" + val2 + r"'"
+                    flag = False
+                else:
+                    val2 = val.replace("'", "''")
+                    # val2 = normalize(val2)
+                    if key == 'leaveAt':
+                        sql_query += r' and ' + key + ' > ' + r"'" + val2 + r"'"
+                    elif key == 'arriveBy':
+                        sql_query += r' and ' + key + ' < ' + r"'" + val2 + r"'"
+                    else:
+                        sql_query += r' and ' + key + '=' + r"'" + val2 + r"'"
+
+        try:  # "select * from attraction  where name = 'queens college'"
+            print(sql_query)
+            return self.sql_dbs[domain].execute(sql_query).fetchall()
+        except Exception:
+            return []  # TODO test it
+
+
+if __name__ == '__main__':
+    dbPATHs = {
+        'attraction': 'db/attraction_db_processed.json',
+        'hospital': 'db/hospital_db_processed.json',
+        'hotel': 'db/hotel_db_processed.json',
+        'police': 'db/police_db_processed.json',
+        'restaurant': 'db/restaurant_db_processed.json',
+        'taxi': 'db/taxi_db_processed.json',
+        'train': 'db/train_db_processed.json',
+    }
+    db = MultiWozDB(dbPATHs)
+    while True:
+        constraints = {}
+        inp = input(
+            'input belief state in fomat: domain-slot1=value1;slot2=value2...\n'
+        )
+        domain, cons = inp.split('-')
+        for sv in cons.split(';'):
+            s, v = sv.split('=')
+            constraints[s] = v
+        # res = db.querySQL(domain, constraints)
+        res = db.queryJsons(domain, constraints, return_name=True)
+        report = []
+        reidx = {
+            'hotel': 8,
+            'restaurant': 6,
+            'attraction': 5,
+            'train': 1,
+        }
+        # for ent in res:
+        #     if reidx.get(domain):
+        #         report.append(ent[reidx[domain]])
+        # for ent in res:
+        #     if 'name' in ent:
+        #         report.append(ent['name'])
+        #     if 'trainid' in ent:
+        #         report.append(ent['trainid'])
+        print(constraints)
+        print(res)
+        print('count:', len(res), '\nnames:', report)
diff --git a/modelscope/utils/nlp/space/ontology.py b/modelscope/utils/nlp/space/ontology.py
new file mode 100644
index 00000000..4f27168a
--- /dev/null
+++ b/modelscope/utils/nlp/space/ontology.py
@@ -0,0 +1,217 @@
+all_domains = [
+    'restaurant', 'hotel', 'attraction', 'train', 'taxi', 'police', 'hospital'
+]
+all_domains_with_bracket = ['[{}]'.format(item) for item in all_domains]
+db_domains = ['restaurant', 'hotel', 'attraction', 'train']
+placeholder_tokens = [
+    '<go_r>', '<go_b>', '<go_a>', '<go_d>', '<eos_u>', '<eos_r>', '<eos_b>',
+    '<eos_a>', '<eos_d>', '<eos_q>', '<sos_u>', '<sos_r>', '<sos_b>',
+    '<sos_a>', '<sos_d>', '<sos_q>'
+]
+
+normlize_slot_names = {
+    'car type': 'car',
+    'entrance fee': 'price',
+    'duration': 'time',
+    'leaveat': 'leave',
+    'arriveby': 'arrive',
+    'trainid': 'id'
+}
+
+requestable_slots = {
+    'taxi': ['car', 'phone'],
+    'police': ['postcode', 'address', 'phone'],
+    'hospital': ['address', 'phone', 'postcode'],
+    'hotel': [
+        'address', 'postcode', 'internet', 'phone', 'parking', 'type',
+        'pricerange', 'stars', 'area', 'reference'
+    ],
+    'attraction':
+    ['price', 'type', 'address', 'postcode', 'phone', 'area', 'reference'],
+    'train': ['time', 'leave', 'price', 'arrive', 'id', 'reference'],
+    'restaurant': [
+        'phone', 'postcode', 'address', 'pricerange', 'food', 'area',
+        'reference'
+    ]
+}
+all_reqslot = [
+    'car', 'address', 'postcode', 'phone', 'internet', 'parking', 'type',
+    'pricerange', 'food', 'stars', 'area', 'reference', 'time', 'leave',
+    'price', 'arrive', 'id'
+]
+
+informable_slots = {
+    'taxi': ['leave', 'destination', 'departure', 'arrive'],
+    'police': [],
+    'hospital': ['department'],
+    'hotel': [
+        'type', 'parking', 'pricerange', 'internet', 'stay', 'day', 'people',
+        'area', 'stars', 'name'
+    ],
+    'attraction': ['area', 'type', 'name'],
+    'train': ['destination', 'day', 'arrive', 'departure', 'people', 'leave'],
+    'restaurant':
+    ['food', 'pricerange', 'area', 'name', 'time', 'day', 'people']
+}
+all_infslot = [
+    'type', 'parking', 'pricerange', 'internet', 'stay', 'day', 'people',
+    'area', 'stars', 'name', 'leave', 'destination', 'departure', 'arrive',
+    'department', 'food', 'time'
+]
+
+all_slots = all_reqslot + [
+    'stay', 'day', 'people', 'name', 'destination', 'departure', 'department'
+]
+get_slot = {}
+for s in all_slots:
+    get_slot[s] = 1
+
+# mapping slots in dialogue act to original goal slot names
+da_abbr_to_slot_name = {
+    'addr': 'address',
+    'fee': 'price',
+    'post': 'postcode',
+    'ref': 'reference',
+    'ticket': 'price',
+    'depart': 'departure',
+    'dest': 'destination',
+}
+
+dialog_acts = {
+    'restaurant': [
+        'inform', 'request', 'nooffer', 'recommend', 'select', 'offerbook',
+        'offerbooked', 'nobook'
+    ],
+    'hotel': [
+        'inform', 'request', 'nooffer', 'recommend', 'select', 'offerbook',
+        'offerbooked', 'nobook'
+    ],
+    'attraction': ['inform', 'request', 'nooffer', 'recommend', 'select'],
+    'train':
+    ['inform', 'request', 'nooffer', 'offerbook', 'offerbooked', 'select'],
+    'taxi': ['inform', 'request'],
+    'police': ['inform', 'request'],
+    'hospital': ['inform', 'request'],
+    # 'booking': ['book', 'inform', 'nobook', 'request'],
+    'general': ['bye', 'greet', 'reqmore', 'welcome'],
+}
+all_acts = []
+for acts in dialog_acts.values():
+    for act in acts:
+        if act not in all_acts:
+            all_acts.append(act)
+
+dialog_act_params = {
+    'inform': all_slots + ['choice', 'open'],
+    'request': all_infslot + ['choice', 'price'],
+    'nooffer': all_slots + ['choice'],
+    'recommend': all_reqslot + ['choice', 'open'],
+    'select': all_slots + ['choice'],
+    # 'book': ['time', 'people', 'stay', 'reference', 'day', 'name', 'choice'],
+    'nobook': ['time', 'people', 'stay', 'reference', 'day', 'name', 'choice'],
+    'offerbook': all_slots + ['choice'],
+    'offerbooked': all_slots + ['choice'],
+    'reqmore': [],
+    'welcome': [],
+    'bye': [],
+    'greet': [],
+}
+
+dialog_act_all_slots = all_slots + ['choice', 'open']
+
+# special slot tokens in belief span
+# no need of this, just covert slot to [slot] e.g. pricerange -> [pricerange]
+slot_name_to_slot_token = {}
+
+# special slot tokens in responses
+# not use at the momoent
+slot_name_to_value_token = {
+    # 'entrance fee': '[value_price]',
+    # 'pricerange': '[value_price]',
+    # 'arriveby': '[value_time]',
+    # 'leaveat': '[value_time]',
+    # 'departure': '[value_place]',
+    # 'destination': '[value_place]',
+    # 'stay': 'count',
+    # 'people': 'count'
+}
+
+# eos tokens definition
+eos_tokens = {
+    'user': '<eos_u>',
+    'user_delex': '<eos_u>',
+    'resp': '<eos_r>',
+    'resp_gen': '<eos_r>',
+    'pv_resp': '<eos_r>',
+    'bspn': '<eos_b>',
+    'bspn_gen': '<eos_b>',
+    'pv_bspn': '<eos_b>',
+    'bsdx': '<eos_b>',
+    'bsdx_gen': '<eos_b>',
+    'pv_bsdx': '<eos_b>',
+    'qspn': '<eos_q>',
+    'qspn_gen': '<eos_q>',
+    'pv_qspn': '<eos_q>',
+    'aspn': '<eos_a>',
+    'aspn_gen': '<eos_a>',
+    'pv_aspn': '<eos_a>',
+    'dspn': '<eos_d>',
+    'dspn_gen': '<eos_d>',
+    'pv_dspn': '<eos_d>'
+}
+
+# sos tokens definition
+sos_tokens = {
+    'user': '<sos_u>',
+    'user_delex': '<sos_u>',
+    'resp': '<sos_r>',
+    'resp_gen': '<sos_r>',
+    'pv_resp': '<sos_r>',
+    'bspn': '<sos_b>',
+    'bspn_gen': '<sos_b>',
+    'pv_bspn': '<sos_b>',
+    'bsdx': '<sos_b>',
+    'bsdx_gen': '<sos_b>',
+    'pv_bsdx': '<sos_b>',
+    'qspn': '<sos_q>',
+    'qspn_gen': '<sos_q>',
+    'pv_qspn': '<sos_q>',
+    'aspn': '<sos_a>',
+    'aspn_gen': '<sos_a>',
+    'pv_aspn': '<sos_a>',
+    'dspn': '<sos_d>',
+    'dspn_gen': '<sos_d>',
+    'pv_dspn': '<sos_d>'
+}
+
+# db tokens definition
+db_tokens = [
+    '<sos_db>', '<eos_db>', '[book_nores]', '[book_fail]', '[book_success]',
+    '[db_nores]', '[db_0]', '[db_1]', '[db_2]', '[db_3]'
+]
+
+
+# understand tokens definition
+def get_understand_tokens(prompt_num_for_understand):
+    understand_tokens = []
+    for i in range(prompt_num_for_understand):
+        understand_tokens.append(f'<understand_{i}>')
+    return understand_tokens
+
+
+# policy tokens definition
+def get_policy_tokens(prompt_num_for_policy):
+    policy_tokens = []
+    for i in range(prompt_num_for_policy):
+        policy_tokens.append(f'<policy_{i}>')
+    return policy_tokens
+
+
+# all special tokens definition
+def get_special_tokens(other_tokens):
+    special_tokens = [
+        '<go_r>', '<go_b>', '<go_a>', '<go_d>', '<eos_u>', '<eos_r>',
+        '<eos_b>', '<eos_a>', '<eos_d>', '<eos_q>', '<sos_u>', '<sos_r>',
+        '<sos_b>', '<sos_a>', '<sos_d>', '<sos_q>'
+    ] + db_tokens + other_tokens
+    return special_tokens
diff --git a/modelscope/utils/nlp/space/scores.py b/modelscope/utils/nlp/space/scores.py
new file mode 100644
index 00000000..fe0a8a17
--- /dev/null
+++ b/modelscope/utils/nlp/space/scores.py
@@ -0,0 +1,6 @@
+def hierarchical_set_score(frame1, frame2):
+    # deal with empty frame
+    if not (frame1 and frame2):
+        return 0.
+    pass
+    return 0.
diff --git a/modelscope/utils/nlp/space/utils.py b/modelscope/utils/nlp/space/utils.py
new file mode 100644
index 00000000..ba956b7d
--- /dev/null
+++ b/modelscope/utils/nlp/space/utils.py
@@ -0,0 +1,206 @@
+import logging
+from collections import OrderedDict
+
+import json
+import numpy as np
+
+from . import ontology
+
+
+def max_lens(X):
+    lens = [len(X)]
+    while isinstance(X[0], list):
+        lens.append(max(map(len, X)))
+        X = [x for xs in X for x in xs]
+    return lens
+
+
+def list2np(X: object, padding: object = 0, dtype: object = 'int64') -> object:
+    shape = max_lens(X)
+    ret = np.full(shape, padding, dtype=np.int32)
+
+    if len(shape) == 1:
+        ret = np.array(X)
+    elif len(shape) == 2:
+        for i, x in enumerate(X):
+            ret[i, :len(x)] = np.array(x)
+    elif len(shape) == 3:
+        for i, xs in enumerate(X):
+            for j, x in enumerate(xs):
+                ret[i, j, :len(x)] = np.array(x)
+    return ret.astype(dtype)
+
+
+def clean_replace(s, r, t, forward=True, backward=False):
+
+    def clean_replace_single(s, r, t, forward, backward, sidx=0):
+        # idx = s[sidx:].find(r)
+        idx = s.find(r)
+        if idx == -1:
+            return s, -1
+        idx_r = idx + len(r)
+        if backward:
+            while idx > 0 and s[idx - 1]:
+                idx -= 1
+        elif idx > 0 and s[idx - 1] != ' ':
+            return s, -1
+
+        if forward:
+            while \
+                    idx_r < len(s) and (s[idx_r].isalpha() or s[idx_r].isdigit()):
+                idx_r += 1
+        elif idx_r != len(s) and (s[idx_r].isalpha() or s[idx_r].isdigit()):
+            return s, -1
+        return s[:idx] + t + s[idx_r:], idx_r
+
+    # source, replace, target = s, r, t
+    # count = 0
+    sidx = 0
+    while sidx != -1:
+        s, sidx = clean_replace_single(s, r, t, forward, backward, sidx)
+        # count += 1
+        # print(s, sidx)
+        # if count == 20:
+        #     print(source, '\n', replace, '\n', target)
+        #     quit()
+    return s
+
+
+def py2np(list):
+    return np.array(list)
+
+
+def write_dict(fn, dic):
+    with open(fn, 'w') as f:
+        json.dump(dic, f, indent=2)
+
+
+def f1_score(label_list, pred_list):
+    tp = len([t for t in pred_list if t in label_list])
+    fp = max(0, len(pred_list) - tp)
+    fn = max(0, len(label_list) - tp)
+    precision = tp / (tp + fp + 1e-10)
+    recall = tp / (tp + fn + 1e-10)
+    f1 = 2 * precision * recall / (precision + recall + 1e-10)
+    return f1
+
+
+class MultiWOZVocab(object):
+
+    def __init__(self, vocab_size=0):
+        """
+        vocab for multiwoz dataset
+        """
+        self.vocab_size = vocab_size
+        self.vocab_size_oov = 0  # get after construction
+        self._idx2word = {}  # word + oov
+        self._word2idx = {}  # word
+        self._freq_dict = {}  # word + oov
+        for w in [
+                '[PAD]', '<go_r>', '[UNK]', '<go_b>', '<go_a>', '<eos_u>',
+                '<eos_r>', '<eos_b>', '<eos_a>', '<go_d>', '<eos_d>'
+        ]:
+            self._absolute_add_word(w)
+
+    def _absolute_add_word(self, w):
+        idx = len(self._idx2word)
+        self._idx2word[idx] = w
+        self._word2idx[w] = idx
+
+    def add_word(self, word):
+        if word not in self._freq_dict:
+            self._freq_dict[word] = 0
+        self._freq_dict[word] += 1
+
+    def has_word(self, word):
+        return self._freq_dict.get(word)
+
+    def _add_to_vocab(self, word):
+        if word not in self._word2idx:
+            idx = len(self._idx2word)
+            self._idx2word[idx] = word
+            self._word2idx[word] = idx
+
+    def construct(self):
+        freq_dict_sorted = sorted(
+            self._freq_dict.keys(), key=lambda x: -self._freq_dict[x])
+        print('Vocabulary size including oov: %d' %
+              (len(freq_dict_sorted) + len(self._idx2word)))
+        if len(freq_dict_sorted) + len(self._idx2word) < self.vocab_size:
+            logging.warning(
+                'actual label set smaller than that configured: {}/{}'.format(
+                    len(freq_dict_sorted) + len(self._idx2word),
+                    self.vocab_size))
+        for word in ontology.all_domains + ['general']:
+            word = '[' + word + ']'
+            self._add_to_vocab(word)
+        for word in ontology.all_acts:
+            word = '[' + word + ']'
+            self._add_to_vocab(word)
+        for word in ontology.all_slots:
+            self._add_to_vocab(word)
+        for word in freq_dict_sorted:
+            if word.startswith('[value_') and word.endswith(']'):
+                self._add_to_vocab(word)
+        for word in freq_dict_sorted:
+            self._add_to_vocab(word)
+        self.vocab_size_oov = len(self._idx2word)
+
+    def load_vocab(self, vocab_path):
+        self._freq_dict = json.loads(
+            open(vocab_path + '.freq.json', 'r').read())
+        self._word2idx = json.loads(
+            open(vocab_path + '.word2idx.json', 'r').read())
+        self._idx2word = {}
+        for w, idx in self._word2idx.items():
+            self._idx2word[idx] = w
+        self.vocab_size_oov = len(self._idx2word)
+        print('vocab file loaded from "' + vocab_path + '"')
+        print('Vocabulary size including oov: %d' % (self.vocab_size_oov))
+
+    def save_vocab(self, vocab_path):
+        _freq_dict = OrderedDict(
+            sorted(
+                self._freq_dict.items(), key=lambda kv: kv[1], reverse=True))
+        write_dict(vocab_path + '.word2idx.json', self._word2idx)
+        write_dict(vocab_path + '.freq.json', _freq_dict)
+
+    def encode(self, word, include_oov=True):
+        if include_oov:
+            if self._word2idx.get(word, None) is None:
+                raise ValueError(
+                    'Unknown word: %s. Vocabulary should include oovs here.'
+                    % word)
+            return self._word2idx[word]
+        else:
+            word = '<unk>' if word not in self._word2idx else word
+            return self._word2idx[word]
+
+    def sentence_encode(self, word_list):
+        return [self.encode(_) for _ in word_list]
+
+    def oov_idx_map(self, idx):
+        return 2 if idx > self.vocab_size else idx
+
+    def sentence_oov_map(self, index_list):
+        return [self.oov_idx_map(_) for _ in index_list]
+
+    def decode(self, idx, indicate_oov=False):
+        if not self._idx2word.get(idx):
+            raise ValueError(
+                'Error idx: %d. Vocabulary should include oovs here.' % idx)
+        if not indicate_oov or idx < self.vocab_size:
+            return self._idx2word[idx]
+        else:
+            return self._idx2word[idx] + '(o)'
+
+    # def sentence_decode(self, index_list, eos=None, indicate_oov=False):
+    #     l = [self.decode(_, indicate_oov) for _ in index_list]
+    #     if not eos or eos not in l:
+    #         return ' '.join(l)
+    #     else:
+    #         idx = l.index(eos)
+    #         return ' '.join(l[:idx])
+    #
+    # def nl_decode(self, l, eos=None):
+    #     return [self.sentence_decode(_, eos) + '\n' for _ in l]
diff --git a/requirements/nlp.txt b/requirements/nlp.txt
index 261b9ec5..84a57b5c 100644
--- a/requirements/nlp.txt
+++ b/requirements/nlp.txt
@@ -1 +1,4 @@
 https://alinlp.alibaba-inc.com/pypi/sofa-1.0.3-py3-none-any.whl
+https://github.com/explosion/spacy-models/releases/download/en_core_web_sm-2.3.1/en_core_web_sm-2.3.1.tar.gz
+spacy>=2.3.5
+# python -m spacy download en_core_web_sm
diff --git a/tests/pipelines/nlp/__init__.py b/tests/pipelines/nlp/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/tests/pipelines/nlp/test_dialog_intent_prediction.py b/tests/pipelines/nlp/test_dialog_intent_prediction.py
new file mode 100644
index 00000000..0ec4e1e7
--- /dev/null
+++ b/tests/pipelines/nlp/test_dialog_intent_prediction.py
@@ -0,0 +1,60 @@
+# Copyright (c) Alibaba, Inc. and its affiliates.
+import unittest
+
+from maas_hub.snapshot_download import snapshot_download
+
+from modelscope.models import Model
+from modelscope.models.nlp import DialogIntentModel
+from modelscope.pipelines import DialogIntentPredictionPipeline, pipeline
+from modelscope.preprocessors import DialogIntentPredictionPreprocessor
+from modelscope.utils.constant import Tasks
+
+
+class DialogIntentPredictionTest(unittest.TestCase):
+    model_id = 'damo/nlp_space_dialog-intent-prediction'
+    test_case = [
+        'How do I locate my card?',
+        'I still have not received my new card, I ordered over a week ago.'
+    ]
+
+    @unittest.skip('test with snapshot_download')
+    def test_run(self):
+        cache_path = snapshot_download(self.model_id)
+        preprocessor = DialogIntentPredictionPreprocessor(model_dir=cache_path)
+        model = DialogIntentModel(
+            model_dir=cache_path,
+            text_field=preprocessor.text_field,
+            config=preprocessor.config)
+
+        pipelines = [
+            DialogIntentPredictionPipeline(
+                model=model, preprocessor=preprocessor),
+            pipeline(
+                task=Tasks.dialog_intent_prediction,
+                model=model,
+                preprocessor=preprocessor)
+        ]
+
+        for my_pipeline, item in list(zip(pipelines, self.test_case)):
+            print(my_pipeline(item))
+
+    def test_run_with_model_from_modelhub(self):
+        model = Model.from_pretrained(self.model_id)
+        preprocessor = DialogIntentPredictionPreprocessor(
+            model_dir=model.model_dir)
+
+        pipelines = [
+            DialogIntentPredictionPipeline(
+                model=model, preprocessor=preprocessor),
+            pipeline(
+                task=Tasks.dialog_intent_prediction,
+                model=model,
+                preprocessor=preprocessor)
+        ]
+
+        for my_pipeline, item in list(zip(pipelines, self.test_case)):
+            print(my_pipeline(item))
+
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/tests/pipelines/nlp/test_dialog_modeling.py b/tests/pipelines/nlp/test_dialog_modeling.py
new file mode 100644
index 00000000..7d4da8fe
--- /dev/null
+++ b/tests/pipelines/nlp/test_dialog_modeling.py
@@ -0,0 +1,149 @@
+# Copyright (c) Alibaba, Inc. and its affiliates.
+import os
+import os.path as osp
+import tempfile
+import unittest
+
+from maas_hub.snapshot_download import snapshot_download
+
+from modelscope.models import Model
+from modelscope.models.nlp import DialogModelingModel
+from modelscope.pipelines import DialogModelingPipeline, pipeline
+from modelscope.preprocessors import DialogModelingPreprocessor
+from modelscope.utils.constant import Tasks
+
+
+class DialogModelingTest(unittest.TestCase):
+    model_id = 'damo/nlp_space_dialog-modeling'
+    test_case = {
+        'sng0073': {
+            'goal': {
+                'taxi': {
+                    'info': {
+                        'leaveat': '17:15',
+                        'destination': 'pizza hut fen ditton',
+                        'departure': "saint john's college"
+                    },
+                    'reqt': ['car', 'phone'],
+                    'fail_info': {}
+                }
+            },
+            'log': [{
+                'user':
+                "i would like a taxi from saint john 's college to pizza hut fen ditton .",
+                'user_delex':
+                'i would like a taxi from [value_departure] to [value_destination] .',
+                'resp':
+                'what time do you want to leave and what time do you want to arrive by ?',
+                'sys':
+                'what time do you want to leave and what time do you want to arrive by ?',
+                'pointer': '0,0,0,0,0,0',
+                'match': '',
+                'constraint':
+                "[taxi] destination pizza hut fen ditton departure saint john 's college",
+                'cons_delex': '[taxi] destination departure',
+                'sys_act': '[taxi] [request] leave arrive',
+                'turn_num': 0,
+                'turn_domain': '[taxi]'
+            }, {
+                'user': 'i want to leave after 17:15 .',
+                'user_delex': 'i want to leave after [value_leave] .',
+                'resp':
+                'booking completed ! your taxi will be [value_car] contact number is [value_phone]',
+                'sys':
+                'booking completed ! your taxi will be blue honda contact number is 07218068540',
+                'pointer': '0,0,0,0,0,0',
+                'match': '',
+                'constraint':
+                "[taxi] destination pizza hut fen ditton departure saint john 's college leave 17:15",
+                'cons_delex': '[taxi] destination departure leave',
+                'sys_act': '[taxi] [inform] car phone',
+                'turn_num': 1,
+                'turn_domain': '[taxi]'
+            }, {
+                'user': 'thank you for all the help ! i appreciate it .',
+                'user_delex': 'thank you for all the help ! i appreciate it .',
+                'resp':
+                'you are welcome . is there anything else i can help you with today ?',
+                'sys':
+                'you are welcome . is there anything else i can help you with today ?',
+                'pointer': '0,0,0,0,0,0',
+                'match': '',
+                'constraint':
+                "[taxi] destination pizza hut fen ditton departure saint john 's college leave 17:15",
+                'cons_delex': '[taxi] destination departure leave',
+                'sys_act': '[general] [reqmore]',
+                'turn_num': 2,
+                'turn_domain': '[general]'
+            }, {
+                'user': 'no , i am all set . have a nice day . bye .',
+                'user_delex': 'no , i am all set . have a nice day . bye .',
+                'resp': 'you too ! thank you',
+                'sys': 'you too ! thank you',
+                'pointer': '0,0,0,0,0,0',
+                'match': '',
+                'constraint':
+                "[taxi] destination pizza hut fen ditton departure saint john 's college leave 17:15",
+                'cons_delex': '[taxi] destination departure leave',
+                'sys_act': '[general] [bye]',
+                'turn_num': 3,
+                'turn_domain': '[general]'
+            }]
+        }
+    }
+
+    @unittest.skip('test with snapshot_download')
+    def test_run(self):
+
+        cache_path = snapshot_download(self.model_id)
+
+        preprocessor = DialogModelingPreprocessor(model_dir=cache_path)
+        model = DialogModelingModel(
+            model_dir=cache_path,
+            text_field=preprocessor.text_field,
+            config=preprocessor.config)
+        pipelines = [
+            DialogModelingPipeline(model=model, preprocessor=preprocessor),
+            pipeline(
+                task=Tasks.dialog_modeling,
+                model=model,
+                preprocessor=preprocessor)
+        ]
+
+        result = {}
+        for step, item in enumerate(self.test_case['sng0073']['log']):
+            user = item['user']
+            print('user: {}'.format(user))
+
+            result = pipelines[step % 2]({
+                'user_input': user,
+                'history': result
+            })
+            print('sys : {}'.format(result['sys']))
+
+    def test_run_with_model_from_modelhub(self):
+        model = Model.from_pretrained(self.model_id)
+        preprocessor = DialogModelingPreprocessor(model_dir=model.model_dir)
+
+        pipelines = [
+            DialogModelingPipeline(model=model, preprocessor=preprocessor),
+            pipeline(
+                task=Tasks.dialog_modeling,
+                model=model,
+                preprocessor=preprocessor)
+        ]
+
+        result = {}
+        for step, item in enumerate(self.test_case['sng0073']['log']):
+            user = item['user']
+            print('user: {}'.format(user))
+
+            result = pipelines[step % 2]({
+                'user_input': user,
+                'history': result
+            })
+            print('sys : {}'.format(result['sys']))
+
+
+if __name__ == '__main__':
+    unittest.main()