| | |
| | | from funasr.modules.nets_utils import make_pad_mask, pad_list |
| | | from funasr.modules.nets_utils import th_accuracy |
| | | from funasr.torch_utils.device_funcs import force_gatherable |
| | | from funasr.train.abs_espnet_model import AbsESPnetModel |
| | | from funasr.models.base_model import FunASRModel |
| | | from funasr.models.predictor.cif import CifPredictorV3 |
| | | |
| | | |
| | | if LooseVersion(torch.__version__) >= LooseVersion("1.6.0"): |
| | | from torch.cuda.amp import autocast |
| | |
| | | yield |
| | | |
| | | |
| | | class Paraformer(AbsESPnetModel): |
| | | class Paraformer(FunASRModel): |
| | | """ |
| | | Author: Speech Lab of DAMO Academy, Alibaba Group |
| | | Paraformer: Fast and Accurate Parallel Transformer for Non-autoregressive End-to-End Speech Recognition |
| | |
| | | frontend: Optional[AbsFrontend], |
| | | specaug: Optional[AbsSpecAug], |
| | | normalize: Optional[AbsNormalize], |
| | | preencoder: Optional[AbsPreEncoder], |
| | | encoder: AbsEncoder, |
| | | postencoder: Optional[AbsPostEncoder], |
| | | decoder: AbsDecoder, |
| | | ctc: CTC, |
| | | ctc_weight: float = 0.5, |
| | |
| | | predictor_bias: int = 0, |
| | | sampling_ratio: float = 0.2, |
| | | share_embedding: bool = False, |
| | | preencoder: Optional[AbsPreEncoder] = None, |
| | | postencoder: Optional[AbsPostEncoder] = None, |
| | | use_1st_decoder_loss: bool = False, |
| | | ): |
| | | assert check_argument_types() |
| | | assert 0.0 <= ctc_weight <= 1.0, ctc_weight |
| | |
| | | if self.share_embedding: |
| | | self.decoder.embed = None |
| | | |
| | | self.use_1st_decoder_loss = use_1st_decoder_loss |
| | | |
| | | def forward( |
| | | self, |
| | | speech: torch.Tensor, |
| | |
| | | text_lengths: torch.Tensor, |
| | | ) -> Tuple[torch.Tensor, Dict[str, torch.Tensor], torch.Tensor]: |
| | | """Frontend + Encoder + Decoder + Calc loss |
| | | |
| | | Args: |
| | | speech: (Batch, Length, ...) |
| | | speech_lengths: (Batch, ) |
| | |
| | | intermediate_outs = encoder_out[1] |
| | | encoder_out = encoder_out[0] |
| | | |
| | | loss_att, acc_att, cer_att, wer_att = None, None, None, None |
| | | loss_att, pre_loss_att, acc_att, cer_att, wer_att = None, None, None, None, None |
| | | loss_ctc, cer_ctc = None, None |
| | | loss_pre = None |
| | | stats = dict() |
| | |
| | | |
| | | # 2b. Attention decoder branch |
| | | if self.ctc_weight != 1.0: |
| | | loss_att, acc_att, cer_att, wer_att, loss_pre = self._calc_att_loss( |
| | | loss_att, acc_att, cer_att, wer_att, loss_pre, pre_loss_att = self._calc_att_loss( |
| | | encoder_out, encoder_out_lens, text, text_lengths |
| | | ) |
| | | |
| | |
| | | else: |
| | | loss = self.ctc_weight * loss_ctc + (1 - self.ctc_weight) * loss_att + loss_pre * self.predictor_weight |
| | | |
| | | if self.use_1st_decoder_loss and pre_loss_att is not None: |
| | | loss = loss + pre_loss_att |
| | | |
| | | # Collect Attn branch stats |
| | | stats["loss_att"] = loss_att.detach() if loss_att is not None else None |
| | | stats["pre_loss_att"] = pre_loss_att.detach() if pre_loss_att is not None else None |
| | | stats["acc"] = acc_att |
| | | stats["cer"] = cer_att |
| | | stats["wer"] = wer_att |
| | |
| | | self, speech: torch.Tensor, speech_lengths: torch.Tensor |
| | | ) -> Tuple[torch.Tensor, torch.Tensor]: |
| | | """Frontend + Encoder. Note that this method is used by asr_inference.py |
| | | |
| | | Args: |
| | | speech: (Batch, Length, ...) |
| | | speech_lengths: (Batch, ) |
| | |
| | | ys_pad_lens: torch.Tensor, |
| | | ) -> torch.Tensor: |
| | | """Compute negative log likelihood(nll) from transformer-decoder |
| | | |
| | | Normally, this function is called in batchify_nll. |
| | | |
| | | Args: |
| | | encoder_out: (Batch, Length, Dim) |
| | | encoder_out_lens: (Batch,) |
| | |
| | | batch_size: int = 100, |
| | | ): |
| | | """Compute negative log likelihood(nll) from transformer-decoder |
| | | |
| | | To avoid OOM, this fuction seperate the input into batches. |
| | | Then call nll for each batch and combine and return results. |
| | | Args: |
| | |
| | | |
| | | # 0. sampler |
| | | decoder_out_1st = None |
| | | pre_loss_att = None |
| | | if self.sampling_ratio > 0.0: |
| | | if self.step_cur < 2: |
| | | logging.info("enable sampler in paraformer, sampling_ratio: {}".format(self.sampling_ratio)) |
| | | sematic_embeds, decoder_out_1st = self.sampler(encoder_out, encoder_out_lens, ys_pad, ys_pad_lens, |
| | | pre_acoustic_embeds) |
| | | if self.use_1st_decoder_loss: |
| | | sematic_embeds, decoder_out_1st, pre_loss_att = self.sampler_with_grad(encoder_out, encoder_out_lens, ys_pad, ys_pad_lens, |
| | | pre_acoustic_embeds) |
| | | else: |
| | | sematic_embeds, decoder_out_1st = self.sampler(encoder_out, encoder_out_lens, ys_pad, ys_pad_lens, |
| | | pre_acoustic_embeds) |
| | | else: |
| | | if self.step_cur < 2: |
| | | logging.info("disable sampler in paraformer, sampling_ratio: {}".format(self.sampling_ratio)) |
| | |
| | | ys_hat = decoder_out_1st.argmax(dim=-1) |
| | | cer_att, wer_att = self.error_calculator(ys_hat.cpu(), ys_pad.cpu()) |
| | | |
| | | return loss_att, acc_att, cer_att, wer_att, loss_pre |
| | | return loss_att, acc_att, cer_att, wer_att, loss_pre, pre_loss_att |
| | | |
| | | def sampler(self, encoder_out, encoder_out_lens, ys_pad, ys_pad_lens, pre_acoustic_embeds): |
| | | |
| | |
| | | sematic_embeds = pre_acoustic_embeds.masked_fill(~input_mask_expand_dim, 0) + ys_pad_embed.masked_fill( |
| | | input_mask_expand_dim, 0) |
| | | return sematic_embeds * tgt_mask, decoder_out * tgt_mask |
| | | |
| | | def sampler_with_grad(self, encoder_out, encoder_out_lens, ys_pad, ys_pad_lens, pre_acoustic_embeds): |
| | | tgt_mask = (~make_pad_mask(ys_pad_lens, maxlen=ys_pad_lens.max())[:, :, None]).to(ys_pad.device) |
| | | ys_pad_masked = ys_pad * tgt_mask[:, :, 0] |
| | | if self.share_embedding: |
| | | ys_pad_embed = self.decoder.output_layer.weight[ys_pad_masked] |
| | | else: |
| | | ys_pad_embed = self.decoder.embed(ys_pad_masked) |
| | | decoder_outs = self.decoder( |
| | | encoder_out, encoder_out_lens, pre_acoustic_embeds, ys_pad_lens |
| | | ) |
| | | pre_loss_att = self.criterion_att(decoder_outs[0], ys_pad) |
| | | decoder_out, _ = decoder_outs[0], decoder_outs[1] |
| | | pred_tokens = decoder_out.argmax(-1) |
| | | nonpad_positions = ys_pad.ne(self.ignore_id) |
| | | seq_lens = (nonpad_positions).sum(1) |
| | | same_num = ((pred_tokens == ys_pad) & nonpad_positions).sum(1) |
| | | input_mask = torch.ones_like(nonpad_positions) |
| | | bsz, seq_len = ys_pad.size() |
| | | for li in range(bsz): |
| | | target_num = (((seq_lens[li] - same_num[li].sum()).float()) * self.sampling_ratio).long() |
| | | if target_num > 0: |
| | | input_mask[li].scatter_(dim=0, index=torch.randperm(seq_lens[li])[:target_num].cuda(), value=0) |
| | | input_mask = input_mask.eq(1) |
| | | input_mask = input_mask.masked_fill(~nonpad_positions, False) |
| | | input_mask_expand_dim = input_mask.unsqueeze(2).to(pre_acoustic_embeds.device) |
| | | |
| | | sematic_embeds = pre_acoustic_embeds.masked_fill(~input_mask_expand_dim, 0) + ys_pad_embed.masked_fill( |
| | | input_mask_expand_dim, 0) |
| | | |
| | | return sematic_embeds * tgt_mask, decoder_out * tgt_mask, pre_loss_att |
| | | |
| | | def _calc_ctc_loss( |
| | | self, |
| | |
| | | self, speech: torch.Tensor, speech_lengths: torch.Tensor, cache: dict = None |
| | | ) -> Tuple[torch.Tensor, torch.Tensor]: |
| | | """Frontend + Encoder. Note that this method is used by asr_inference.py |
| | | <<<<<<< HEAD |
| | | ======= |
| | | |
| | | >>>>>>> 4cd79db451786548d8a100f25c3b03da0eb30f4b |
| | | Args: |
| | | speech: (Batch, Length, ...) |
| | | speech_lengths: (Batch, ) |
| | |
| | | |
| | | def calc_predictor_chunk(self, encoder_out, cache=None): |
| | | |
| | | pre_acoustic_embeds, pre_token_length, alphas, pre_peak_index = \ |
| | | pre_acoustic_embeds, pre_token_length = \ |
| | | self.predictor.forward_chunk(encoder_out, cache["encoder"]) |
| | | return pre_acoustic_embeds, pre_token_length, alphas, pre_peak_index |
| | | return pre_acoustic_embeds, pre_token_length |
| | | |
| | | def cal_decoder_with_predictor_chunk(self, encoder_out, sematic_embeds, cache=None): |
| | | decoder_outs = self.decoder.forward_chunk( |
| | |
| | | frontend: Optional[AbsFrontend], |
| | | specaug: Optional[AbsSpecAug], |
| | | normalize: Optional[AbsNormalize], |
| | | preencoder: Optional[AbsPreEncoder], |
| | | encoder: AbsEncoder, |
| | | postencoder: Optional[AbsPostEncoder], |
| | | decoder: AbsDecoder, |
| | | ctc: CTC, |
| | | ctc_weight: float = 0.5, |
| | |
| | | embeds_id: int = 2, |
| | | embeds_loss_weight: float = 0.0, |
| | | embed_dims: int = 768, |
| | | preencoder: Optional[AbsPreEncoder] = None, |
| | | postencoder: Optional[AbsPostEncoder] = None, |
| | | ): |
| | | assert check_argument_types() |
| | | assert 0.0 <= ctc_weight <= 1.0, ctc_weight |
| | |
| | | embed_lengths: torch.Tensor = None, |
| | | ) -> Tuple[torch.Tensor, Dict[str, torch.Tensor], torch.Tensor]: |
| | | """Frontend + Encoder + Decoder + Calc loss |
| | | |
| | | Args: |
| | | speech: (Batch, Length, ...) |
| | | speech_lengths: (Batch, ) |
| | |
| | | self.step_cur += 1 |
| | | # for data-parallel |
| | | text = text[:, : text_lengths.max()] |
| | | speech = speech[:, :speech_lengths.max(), :] |
| | | speech = speech[:, :speech_lengths.max()] |
| | | if embed is not None: |
| | | embed = embed[:, :embed_lengths.max(), :] |
| | | embed = embed[:, :embed_lengths.max()] |
| | | |
| | | # 1. Encoder |
| | | encoder_out, encoder_out_lens = self.encode(speech, speech_lengths) |
| | |
| | | |
| | | |
| | | class BiCifParaformer(Paraformer): |
| | | |
| | | """ |
| | | Paraformer model with an extra cif predictor |
| | | to conduct accurate timestamp prediction |
| | | """ |
| | | |
| | | def __init__( |
| | | self, |
| | | vocab_size: int, |
| | | token_list: Union[Tuple[str, ...], List[str]], |
| | | frontend: Optional[AbsFrontend], |
| | | specaug: Optional[AbsSpecAug], |
| | | normalize: Optional[AbsNormalize], |
| | | preencoder: Optional[AbsPreEncoder], |
| | | encoder: AbsEncoder, |
| | | postencoder: Optional[AbsPostEncoder], |
| | | decoder: AbsDecoder, |
| | | ctc: CTC, |
| | | ctc_weight: float = 0.5, |
| | | interctc_weight: float = 0.0, |
| | | ignore_id: int = -1, |
| | | blank_id: int = 0, |
| | | sos: int = 1, |
| | | eos: int = 2, |
| | | lsm_weight: float = 0.0, |
| | | length_normalized_loss: bool = False, |
| | | report_cer: bool = True, |
| | | report_wer: bool = True, |
| | | sym_space: str = "<space>", |
| | | sym_blank: str = "<blank>", |
| | | extract_feats_in_collect_stats: bool = True, |
| | | predictor = None, |
| | | predictor_weight: float = 0.0, |
| | | predictor_bias: int = 0, |
| | | sampling_ratio: float = 0.2, |
| | | self, |
| | | vocab_size: int, |
| | | token_list: Union[Tuple[str, ...], List[str]], |
| | | frontend: Optional[AbsFrontend], |
| | | specaug: Optional[AbsSpecAug], |
| | | normalize: Optional[AbsNormalize], |
| | | encoder: AbsEncoder, |
| | | decoder: AbsDecoder, |
| | | ctc: CTC, |
| | | ctc_weight: float = 0.5, |
| | | interctc_weight: float = 0.0, |
| | | ignore_id: int = -1, |
| | | blank_id: int = 0, |
| | | sos: int = 1, |
| | | eos: int = 2, |
| | | lsm_weight: float = 0.0, |
| | | length_normalized_loss: bool = False, |
| | | report_cer: bool = True, |
| | | report_wer: bool = True, |
| | | sym_space: str = "<space>", |
| | | sym_blank: str = "<blank>", |
| | | extract_feats_in_collect_stats: bool = True, |
| | | predictor=None, |
| | | predictor_weight: float = 0.0, |
| | | predictor_bias: int = 0, |
| | | sampling_ratio: float = 0.2, |
| | | preencoder: Optional[AbsPreEncoder] = None, |
| | | postencoder: Optional[AbsPostEncoder] = None, |
| | | ): |
| | | assert check_argument_types() |
| | | assert 0.0 <= ctc_weight <= 1.0, ctc_weight |
| | | assert 0.0 <= interctc_weight < 1.0, interctc_weight |
| | | |
| | | super().__init__( |
| | | vocab_size=vocab_size, |
| | | token_list=token_list, |
| | | frontend=frontend, |
| | | specaug=specaug, |
| | | normalize=normalize, |
| | | preencoder=preencoder, |
| | | encoder=encoder, |
| | | postencoder=postencoder, |
| | | decoder=decoder, |
| | | ctc=ctc, |
| | | ctc_weight=ctc_weight, |
| | | interctc_weight=interctc_weight, |
| | | ignore_id=ignore_id, |
| | | blank_id=blank_id, |
| | | sos=sos, |
| | | eos=eos, |
| | | lsm_weight=lsm_weight, |
| | | length_normalized_loss=length_normalized_loss, |
| | | report_cer=report_cer, |
| | | report_wer=report_wer, |
| | | sym_space=sym_space, |
| | | sym_blank=sym_blank, |
| | | extract_feats_in_collect_stats=extract_feats_in_collect_stats, |
| | | predictor=predictor, |
| | | predictor_weight=predictor_weight, |
| | | predictor_bias=predictor_bias, |
| | | sampling_ratio=sampling_ratio, |
| | | vocab_size=vocab_size, |
| | | token_list=token_list, |
| | | frontend=frontend, |
| | | specaug=specaug, |
| | | normalize=normalize, |
| | | preencoder=preencoder, |
| | | encoder=encoder, |
| | | postencoder=postencoder, |
| | | decoder=decoder, |
| | | ctc=ctc, |
| | | ctc_weight=ctc_weight, |
| | | interctc_weight=interctc_weight, |
| | | ignore_id=ignore_id, |
| | | blank_id=blank_id, |
| | | sos=sos, |
| | | eos=eos, |
| | | lsm_weight=lsm_weight, |
| | | length_normalized_loss=length_normalized_loss, |
| | | report_cer=report_cer, |
| | | report_wer=report_wer, |
| | | sym_space=sym_space, |
| | | sym_blank=sym_blank, |
| | | extract_feats_in_collect_stats=extract_feats_in_collect_stats, |
| | | predictor=predictor, |
| | | predictor_weight=predictor_weight, |
| | | predictor_bias=predictor_bias, |
| | | sampling_ratio=sampling_ratio, |
| | | ) |
| | | assert isinstance(self.predictor, CifPredictorV3), "BiCifParaformer should use CIFPredictorV3" |
| | | |
| | |
| | | cer_att, wer_att = self.error_calculator(ys_hat.cpu(), ys_pad.cpu()) |
| | | |
| | | return loss_att, acc_att, cer_att, wer_att, loss_pre |
| | | |
| | | |
| | | def calc_predictor(self, encoder_out, encoder_out_lens): |
| | | |
| | | encoder_out_mask = (~make_pad_mask(encoder_out_lens, maxlen=encoder_out.size(1))[:, None, :]).to( |
| | | encoder_out.device) |
| | | pre_acoustic_embeds, pre_token_length, alphas, pre_peak_index, pre_token_length2 = self.predictor(encoder_out, None, encoder_out_mask, |
| | | ignore_id=self.ignore_id) |
| | | pre_acoustic_embeds, pre_token_length, alphas, pre_peak_index, pre_token_length2 = self.predictor(encoder_out, |
| | | None, |
| | | encoder_out_mask, |
| | | ignore_id=self.ignore_id) |
| | | return pre_acoustic_embeds, pre_token_length, alphas, pre_peak_index |
| | | |
| | | |
| | | def calc_predictor_timestamp(self, encoder_out, encoder_out_lens, token_num): |
| | | encoder_out_mask = (~make_pad_mask(encoder_out_lens, maxlen=encoder_out.size(1))[:, None, :]).to( |
| | | encoder_out.device) |
| | | ds_alphas, ds_cif_peak, us_alphas, us_peaks = self.predictor.get_upsample_timestamp(encoder_out, |
| | | encoder_out_mask, |
| | | token_num) |
| | | encoder_out_mask, |
| | | token_num) |
| | | return ds_alphas, ds_cif_peak, us_alphas, us_peaks |
| | | |
| | | def forward( |
| | |
| | | text_lengths: torch.Tensor, |
| | | ) -> Tuple[torch.Tensor, Dict[str, torch.Tensor], torch.Tensor]: |
| | | """Frontend + Encoder + Decoder + Calc loss |
| | | |
| | | Args: |
| | | speech: (Batch, Length, ...) |
| | | speech_lengths: (Batch, ) |
| | |
| | | elif self.ctc_weight == 1.0: |
| | | loss = loss_ctc |
| | | else: |
| | | loss = self.ctc_weight * loss_ctc + (1 - self.ctc_weight) * loss_att + loss_pre * self.predictor_weight + loss_pre2 * self.predictor_weight * 0.5 |
| | | loss = self.ctc_weight * loss_ctc + ( |
| | | 1 - self.ctc_weight) * loss_att + loss_pre * self.predictor_weight + loss_pre2 * self.predictor_weight * 0.5 |
| | | |
| | | # Collect Attn branch stats |
| | | stats["loss_att"] = loss_att.detach() if loss_att is not None else None |
| | |
| | | frontend: Optional[AbsFrontend], |
| | | specaug: Optional[AbsSpecAug], |
| | | normalize: Optional[AbsNormalize], |
| | | preencoder: Optional[AbsPreEncoder], |
| | | encoder: AbsEncoder, |
| | | postencoder: Optional[AbsPostEncoder], |
| | | decoder: AbsDecoder, |
| | | ctc: CTC, |
| | | ctc_weight: float = 0.5, |
| | |
| | | bias_encoder_type: str = 'lstm', |
| | | label_bracket: bool = False, |
| | | use_decoder_embedding: bool = False, |
| | | preencoder: Optional[AbsPreEncoder] = None, |
| | | postencoder: Optional[AbsPostEncoder] = None, |
| | | ): |
| | | assert check_argument_types() |
| | | assert 0.0 <= ctc_weight <= 1.0, ctc_weight |
| | |
| | | text_lengths: torch.Tensor, |
| | | ) -> Tuple[torch.Tensor, Dict[str, torch.Tensor], torch.Tensor]: |
| | | """Frontend + Encoder + Decoder + Calc loss |
| | | |
| | | Args: |
| | | speech: (Batch, Length, ...) |
| | | speech_lengths: (Batch, ) |
| | |
| | | "torch tensor: {}, {}, loading from tf tensor: {}, {}".format(name, data_tf.size(), name_tf, |
| | | var_dict_tf[name_tf].shape)) |
| | | |
| | | return var_dict_torch_update |
| | | return var_dict_torch_update |