From 98abc0e5ac1a1da0fe1802d9ffb623802fbf0b2f Mon Sep 17 00:00:00 2001
From: jmwang66 <wangjiaming.wjm@alibaba-inc.com>
Date: 星期四, 29 六月 2023 16:30:39 +0800
Subject: [PATCH] update setup (#686)
---
funasr/models/e2e_asr_paraformer.py | 698 +++++++++++++++++++++++++++++++++++++++++++++++++--------
1 files changed, 591 insertions(+), 107 deletions(-)
diff --git a/funasr/models/e2e_asr_paraformer.py b/funasr/models/e2e_asr_paraformer.py
index 699d85f..5a1a29b 100644
--- a/funasr/models/e2e_asr_paraformer.py
+++ b/funasr/models/e2e_asr_paraformer.py
@@ -10,7 +10,6 @@
import torch
import random
import numpy as np
-from typeguard import check_argument_types
from funasr.layers.abs_normalize import AbsNormalize
from funasr.losses.label_smoothing_loss import (
@@ -29,9 +28,8 @@
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
@@ -42,7 +40,7 @@
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
@@ -56,9 +54,7 @@
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,
@@ -79,8 +75,10 @@
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
assert 0.0 <= interctc_weight < 1.0, interctc_weight
@@ -145,20 +143,23 @@
if self.share_embedding:
self.decoder.embed = None
+ self.use_1st_decoder_loss = use_1st_decoder_loss
+
def forward(
self,
speech: torch.Tensor,
speech_lengths: torch.Tensor,
text: torch.Tensor,
text_lengths: torch.Tensor,
+ decoding_ind: int = None,
) -> Tuple[torch.Tensor, Dict[str, torch.Tensor], torch.Tensor]:
"""Frontend + Encoder + Decoder + Calc loss
-
Args:
speech: (Batch, Length, ...)
speech_lengths: (Batch, )
text: (Batch, Length)
text_lengths: (Batch,)
+ decoding_ind: int
"""
assert text_lengths.dim() == 1, text_lengths.shape
# Check that batch_size is unified
@@ -175,13 +176,17 @@
speech = speech[:, :speech_lengths.max()]
# 1. Encoder
- encoder_out, encoder_out_lens = self.encode(speech, speech_lengths)
+ if hasattr(self.encoder, "overlap_chunk_cls"):
+ ind = self.encoder.overlap_chunk_cls.random_choice(self.training, decoding_ind)
+ encoder_out, encoder_out_lens = self.encode(speech, speech_lengths, ind=ind)
+ else:
+ encoder_out, encoder_out_lens = self.encode(speech, speech_lengths)
intermediate_outs = None
if isinstance(encoder_out, tuple):
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()
@@ -222,7 +227,7 @@
# 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
)
@@ -234,8 +239,12 @@
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 + (1 - self.ctc_weight) * 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
@@ -267,13 +276,13 @@
return {"feats": feats, "feats_lengths": feats_lengths}
def encode(
- self, speech: torch.Tensor, speech_lengths: torch.Tensor
+ self, speech: torch.Tensor, speech_lengths: torch.Tensor, ind: int = 0,
) -> Tuple[torch.Tensor, torch.Tensor]:
"""Frontend + Encoder. Note that this method is used by asr_inference.py
-
Args:
speech: (Batch, Length, ...)
speech_lengths: (Batch, )
+ ind: int
"""
with autocast(False):
# 1. Extract feats
@@ -295,11 +304,25 @@
# feats: (Batch, Length, Dim)
# -> encoder_out: (Batch, Length2, Dim2)
if self.encoder.interctc_use_conditioning:
- encoder_out, encoder_out_lens, _ = self.encoder(
- feats, feats_lengths, ctc=self.ctc
- )
+ if hasattr(self.encoder, "overlap_chunk_cls"):
+ encoder_out, encoder_out_lens, _ = self.encoder(
+ feats, feats_lengths, ctc=self.ctc, ind=ind
+ )
+ encoder_out, encoder_out_lens = self.encoder.overlap_chunk_cls.remove_chunk(encoder_out,
+ encoder_out_lens,
+ chunk_outs=None)
+ else:
+ encoder_out, encoder_out_lens, _ = self.encoder(
+ feats, feats_lengths, ctc=self.ctc
+ )
else:
- encoder_out, encoder_out_lens, _ = self.encoder(feats, feats_lengths)
+ if hasattr(self.encoder, "overlap_chunk_cls"):
+ encoder_out, encoder_out_lens, _ = self.encoder(feats, feats_lengths, ind=ind)
+ encoder_out, encoder_out_lens = self.encoder.overlap_chunk_cls.remove_chunk(encoder_out,
+ encoder_out_lens,
+ chunk_outs=None)
+ else:
+ encoder_out, encoder_out_lens, _ = self.encoder(feats, feats_lengths)
intermediate_outs = None
if isinstance(encoder_out, tuple):
intermediate_outs = encoder_out[1]
@@ -368,9 +391,7 @@
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,)
@@ -407,7 +428,6 @@
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:
@@ -462,11 +482,16 @@
# 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))
@@ -496,7 +521,7 @@
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):
@@ -529,6 +554,37 @@
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,
encoder_out: torch.Tensor,
@@ -555,9 +611,136 @@
"""
def __init__(
- self, *args, **kwargs,
+ 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,
+ decoder_attention_chunk_type: str = 'chunk',
+ share_embedding: bool = False,
+ preencoder: Optional[AbsPreEncoder] = None,
+ postencoder: Optional[AbsPostEncoder] = None,
+ use_1st_decoder_loss: bool = False,
):
- super().__init__(*args, **kwargs)
+ 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,
+ )
+ # note that eos is the same as sos (equivalent ID)
+ self.blank_id = blank_id
+ self.sos = vocab_size - 1 if sos is None else sos
+ self.eos = vocab_size - 1 if eos is None else eos
+ self.vocab_size = vocab_size
+ self.ignore_id = ignore_id
+ self.ctc_weight = ctc_weight
+ self.interctc_weight = interctc_weight
+ self.token_list = token_list.copy()
+
+ self.frontend = frontend
+ self.specaug = specaug
+ self.normalize = normalize
+ self.preencoder = preencoder
+ self.postencoder = postencoder
+ self.encoder = encoder
+
+ if not hasattr(self.encoder, "interctc_use_conditioning"):
+ self.encoder.interctc_use_conditioning = False
+ if self.encoder.interctc_use_conditioning:
+ self.encoder.conditioning_layer = torch.nn.Linear(
+ vocab_size, self.encoder.output_size()
+ )
+
+ self.error_calculator = None
+
+ if ctc_weight == 1.0:
+ self.decoder = None
+ else:
+ self.decoder = decoder
+
+ self.criterion_att = LabelSmoothingLoss(
+ size=vocab_size,
+ padding_idx=ignore_id,
+ smoothing=lsm_weight,
+ normalize_length=length_normalized_loss,
+ )
+
+ if report_cer or report_wer:
+ self.error_calculator = ErrorCalculator(
+ token_list, sym_space, sym_blank, report_cer, report_wer
+ )
+
+ if ctc_weight == 0.0:
+ self.ctc = None
+ else:
+ self.ctc = ctc
+
+ self.extract_feats_in_collect_stats = extract_feats_in_collect_stats
+ self.predictor = predictor
+ self.predictor_weight = predictor_weight
+ self.predictor_bias = predictor_bias
+ self.sampling_ratio = sampling_ratio
+ self.criterion_pre = mae_loss(normalize_length=length_normalized_loss)
+ self.step_cur = 0
+ self.scama_mask = None
+ if hasattr(self.encoder, "overlap_chunk_cls") and self.encoder.overlap_chunk_cls is not None:
+ from funasr.modules.streaming_utils.chunk_utilis import build_scama_mask_for_cross_attention_decoder
+ self.build_scama_mask_for_cross_attention_decoder_fn = build_scama_mask_for_cross_attention_decoder
+ self.decoder_attention_chunk_type = decoder_attention_chunk_type
+
+ self.share_embedding = share_embedding
+ if self.share_embedding:
+ self.decoder.embed = None
+
+ self.use_1st_decoder_loss = use_1st_decoder_loss
def forward(
self,
@@ -565,6 +748,7 @@
speech_lengths: torch.Tensor,
text: torch.Tensor,
text_lengths: torch.Tensor,
+ decoding_ind: int = None,
) -> Tuple[torch.Tensor, Dict[str, torch.Tensor], torch.Tensor]:
"""Frontend + Encoder + Decoder + Calc loss
Args:
@@ -572,6 +756,7 @@
speech_lengths: (Batch, )
text: (Batch, Length)
text_lengths: (Batch,)
+ decoding_ind: int
"""
assert text_lengths.dim() == 1, text_lengths.shape
# Check that batch_size is unified
@@ -588,7 +773,11 @@
speech = speech[:, :speech_lengths.max()]
# 1. Encoder
- encoder_out, encoder_out_lens = self.encode(speech, speech_lengths)
+ if hasattr(self.encoder, "overlap_chunk_cls"):
+ ind = self.encoder.overlap_chunk_cls.random_choice(self.training, decoding_ind)
+ encoder_out, encoder_out_lens = self.encode(speech, speech_lengths, ind=ind)
+ else:
+ encoder_out, encoder_out_lens = self.encode(speech, speech_lengths)
intermediate_outs = None
if isinstance(encoder_out, tuple):
intermediate_outs = encoder_out[1]
@@ -601,8 +790,12 @@
# 1. CTC branch
if self.ctc_weight != 0.0:
+ if hasattr(self.encoder, "overlap_chunk_cls"):
+ encoder_out_ctc, encoder_out_lens_ctc = self.encoder.overlap_chunk_cls.remove_chunk(encoder_out,
+ encoder_out_lens,
+ chunk_outs=None)
loss_ctc, cer_ctc = self._calc_ctc_loss(
- encoder_out, encoder_out_lens, text, text_lengths
+ encoder_out_ctc, encoder_out_lens_ctc, text, text_lengths
)
# Collect CTC branch stats
@@ -615,8 +808,14 @@
for layer_idx, intermediate_out in intermediate_outs:
# we assume intermediate_out has the same length & padding
# as those of encoder_out
+ if hasattr(self.encoder, "overlap_chunk_cls"):
+ encoder_out_ctc, encoder_out_lens_ctc = \
+ self.encoder.overlap_chunk_cls.remove_chunk(
+ intermediate_out,
+ encoder_out_lens,
+ chunk_outs=None)
loss_ic, cer_ic = self._calc_ctc_loss(
- intermediate_out, encoder_out_lens, text, text_lengths
+ encoder_out_ctc, encoder_out_lens_ctc, text, text_lengths
)
loss_interctc = loss_interctc + loss_ic
@@ -635,7 +834,7 @@
# 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_predictor_loss(
encoder_out, encoder_out_lens, text, text_lengths
)
@@ -647,8 +846,12 @@
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
@@ -660,11 +863,67 @@
loss, stats, weight = force_gatherable((loss, stats, batch_size), loss.device)
return loss, stats, weight
+ def encode(
+ self, speech: torch.Tensor, speech_lengths: torch.Tensor, ind: int = 0,
+ ) -> Tuple[torch.Tensor, torch.Tensor]:
+ """Frontend + Encoder. Note that this method is used by asr_inference.py
+ Args:
+ speech: (Batch, Length, ...)
+ speech_lengths: (Batch, )
+ """
+ with autocast(False):
+ # 1. Extract feats
+ feats, feats_lengths = self._extract_feats(speech, speech_lengths)
+
+ # 2. Data augmentation
+ if self.specaug is not None and self.training:
+ feats, feats_lengths = self.specaug(feats, feats_lengths)
+
+ # 3. Normalization for feature: e.g. Global-CMVN, Utterance-CMVN
+ if self.normalize is not None:
+ feats, feats_lengths = self.normalize(feats, feats_lengths)
+ # Pre-encoder, e.g. used for raw input data
+ if self.preencoder is not None:
+ feats, feats_lengths = self.preencoder(feats, feats_lengths)
+
+ # 4. Forward encoder
+ # feats: (Batch, Length, Dim)
+ # -> encoder_out: (Batch, Length2, Dim2)
+ if self.encoder.interctc_use_conditioning:
+ encoder_out, encoder_out_lens, _ = self.encoder(
+ feats, feats_lengths, ctc=self.ctc, ind=ind
+ )
+ else:
+ encoder_out, encoder_out_lens, _ = self.encoder(feats, feats_lengths, ind=ind)
+ intermediate_outs = None
+ if isinstance(encoder_out, tuple):
+ intermediate_outs = encoder_out[1]
+ encoder_out = encoder_out[0]
+
+ # Post-encoder, e.g. NLU
+ if self.postencoder is not None:
+ encoder_out, encoder_out_lens = self.postencoder(
+ encoder_out, encoder_out_lens
+ )
+
+ assert encoder_out.size(0) == speech.size(0), (
+ encoder_out.size(),
+ speech.size(0),
+ )
+ assert encoder_out.size(1) <= encoder_out_lens.max(), (
+ encoder_out.size(),
+ encoder_out_lens.max(),
+ )
+
+ if intermediate_outs is not None:
+ return (encoder_out, intermediate_outs), encoder_out_lens
+
+ return encoder_out, encoder_out_lens
+
def encode_chunk(
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
-
Args:
speech: (Batch, Length, ...)
speech_lengths: (Batch, )
@@ -710,11 +969,240 @@
return encoder_out, torch.tensor([encoder_out.size(1)])
+ def _calc_att_predictor_loss(
+ self,
+ encoder_out: torch.Tensor,
+ encoder_out_lens: torch.Tensor,
+ ys_pad: torch.Tensor,
+ ys_pad_lens: torch.Tensor,
+ ):
+ encoder_out_mask = (~make_pad_mask(encoder_out_lens, maxlen=encoder_out.size(1))[:, None, :]).to(
+ encoder_out.device)
+ if self.predictor_bias == 1:
+ _, ys_pad = add_sos_eos(ys_pad, self.sos, self.eos, self.ignore_id)
+ ys_pad_lens = ys_pad_lens + self.predictor_bias
+ mask_chunk_predictor = None
+ if self.encoder.overlap_chunk_cls is not None:
+ mask_chunk_predictor = self.encoder.overlap_chunk_cls.get_mask_chunk_predictor(None,
+ device=encoder_out.device,
+ batch_size=encoder_out.size(
+ 0))
+ mask_shfit_chunk = self.encoder.overlap_chunk_cls.get_mask_shfit_chunk(None, device=encoder_out.device,
+ batch_size=encoder_out.size(0))
+ encoder_out = encoder_out * mask_shfit_chunk
+ pre_acoustic_embeds, pre_token_length, pre_alphas, _ = self.predictor(encoder_out,
+ ys_pad,
+ encoder_out_mask,
+ ignore_id=self.ignore_id,
+ mask_chunk_predictor=mask_chunk_predictor,
+ target_label_length=ys_pad_lens,
+ )
+ predictor_alignments, predictor_alignments_len = self.predictor.gen_frame_alignments(pre_alphas,
+ encoder_out_lens)
+
+ scama_mask = None
+ if self.encoder.overlap_chunk_cls is not None and self.decoder_attention_chunk_type == 'chunk':
+ encoder_chunk_size = self.encoder.overlap_chunk_cls.chunk_size_pad_shift_cur
+ attention_chunk_center_bias = 0
+ attention_chunk_size = encoder_chunk_size
+ decoder_att_look_back_factor = self.encoder.overlap_chunk_cls.decoder_att_look_back_factor_cur
+ mask_shift_att_chunk_decoder = self.encoder.overlap_chunk_cls.\
+ get_mask_shift_att_chunk_decoder(None,
+ device=encoder_out.device,
+ batch_size=encoder_out.size(0)
+ )
+ scama_mask = self.build_scama_mask_for_cross_attention_decoder_fn(
+ predictor_alignments=predictor_alignments,
+ encoder_sequence_length=encoder_out_lens,
+ chunk_size=1,
+ encoder_chunk_size=encoder_chunk_size,
+ attention_chunk_center_bias=attention_chunk_center_bias,
+ attention_chunk_size=attention_chunk_size,
+ attention_chunk_type=self.decoder_attention_chunk_type,
+ step=None,
+ predictor_mask_chunk_hopping=mask_chunk_predictor,
+ decoder_att_look_back_factor=decoder_att_look_back_factor,
+ mask_shift_att_chunk_decoder=mask_shift_att_chunk_decoder,
+ target_length=ys_pad_lens,
+ is_training=self.training,
+ )
+ elif self.encoder.overlap_chunk_cls is not None:
+ encoder_out, encoder_out_lens = self.encoder.overlap_chunk_cls.remove_chunk(encoder_out,
+ encoder_out_lens,
+ chunk_outs=None)
+ # 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))
+ 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, scama_mask)
+ else:
+ sematic_embeds, decoder_out_1st = \
+ self.sampler(encoder_out, encoder_out_lens, ys_pad,
+ ys_pad_lens, pre_acoustic_embeds, scama_mask)
+ else:
+ if self.step_cur < 2:
+ logging.info("disable sampler in paraformer, sampling_ratio: {}".format(self.sampling_ratio))
+ sematic_embeds = pre_acoustic_embeds
+
+ # 1. Forward decoder
+ decoder_outs = self.decoder(
+ encoder_out, encoder_out_lens, sematic_embeds, ys_pad_lens, scama_mask
+ )
+ decoder_out, _ = decoder_outs[0], decoder_outs[1]
+
+ if decoder_out_1st is None:
+ decoder_out_1st = decoder_out
+ # 2. Compute attention loss
+ loss_att = self.criterion_att(decoder_out, ys_pad)
+ acc_att = th_accuracy(
+ decoder_out_1st.view(-1, self.vocab_size),
+ ys_pad,
+ ignore_label=self.ignore_id,
+ )
+ loss_pre = self.criterion_pre(ys_pad_lens.type_as(pre_token_length), pre_token_length)
+
+ # Compute cer/wer using attention-decoder
+ if self.training or self.error_calculator is None:
+ cer_att, wer_att = None, None
+ else:
+ 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, pre_loss_att
+
+ def sampler(self, encoder_out, encoder_out_lens, ys_pad, ys_pad_lens, pre_acoustic_embeds, chunk_mask=None):
+
+ 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)
+ with torch.no_grad():
+ decoder_outs = self.decoder(
+ encoder_out, encoder_out_lens, pre_acoustic_embeds, ys_pad_lens, chunk_mask
+ )
+ 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
+
+ def sampler_with_grad(self, encoder_out, encoder_out_lens, ys_pad, ys_pad_lens, pre_acoustic_embeds, chunk_mask=None):
+ 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, chunk_mask
+ )
+ 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_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)
+ mask_chunk_predictor = None
+ if self.encoder.overlap_chunk_cls is not None:
+ mask_chunk_predictor = self.encoder.overlap_chunk_cls.get_mask_chunk_predictor(None,
+ device=encoder_out.device,
+ batch_size=encoder_out.size(
+ 0))
+ mask_shfit_chunk = self.encoder.overlap_chunk_cls.get_mask_shfit_chunk(None, device=encoder_out.device,
+ batch_size=encoder_out.size(0))
+ encoder_out = encoder_out * mask_shfit_chunk
+ pre_acoustic_embeds, pre_token_length, pre_alphas, pre_peak_index = self.predictor(encoder_out,
+ None,
+ encoder_out_mask,
+ ignore_id=self.ignore_id,
+ mask_chunk_predictor=mask_chunk_predictor,
+ target_label_length=None,
+ )
+ predictor_alignments, predictor_alignments_len = self.predictor.gen_frame_alignments(pre_alphas,
+ encoder_out_lens+1 if self.predictor.tail_threshold > 0.0 else encoder_out_lens)
+
+ scama_mask = None
+ if self.encoder.overlap_chunk_cls is not None and self.decoder_attention_chunk_type == 'chunk':
+ encoder_chunk_size = self.encoder.overlap_chunk_cls.chunk_size_pad_shift_cur
+ attention_chunk_center_bias = 0
+ attention_chunk_size = encoder_chunk_size
+ decoder_att_look_back_factor = self.encoder.overlap_chunk_cls.decoder_att_look_back_factor_cur
+ mask_shift_att_chunk_decoder = self.encoder.overlap_chunk_cls.\
+ get_mask_shift_att_chunk_decoder(None,
+ device=encoder_out.device,
+ batch_size=encoder_out.size(0)
+ )
+ scama_mask = self.build_scama_mask_for_cross_attention_decoder_fn(
+ predictor_alignments=predictor_alignments,
+ encoder_sequence_length=encoder_out_lens,
+ chunk_size=1,
+ encoder_chunk_size=encoder_chunk_size,
+ attention_chunk_center_bias=attention_chunk_center_bias,
+ attention_chunk_size=attention_chunk_size,
+ attention_chunk_type=self.decoder_attention_chunk_type,
+ step=None,
+ predictor_mask_chunk_hopping=mask_chunk_predictor,
+ decoder_att_look_back_factor=decoder_att_look_back_factor,
+ mask_shift_att_chunk_decoder=mask_shift_att_chunk_decoder,
+ target_length=None,
+ is_training=self.training,
+ )
+ self.scama_mask = scama_mask
+
+ return pre_acoustic_embeds, pre_token_length, pre_alphas, pre_peak_index
+
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(self, encoder_out, encoder_out_lens, sematic_embeds, ys_pad_lens):
+ decoder_outs = self.decoder(
+ encoder_out, encoder_out_lens, sematic_embeds, ys_pad_lens, self.scama_mask
+ )
+ decoder_out = decoder_outs[0]
+ decoder_out = torch.log_softmax(decoder_out, dim=-1)
+ return decoder_out, ys_pad_lens
def cal_decoder_with_predictor_chunk(self, encoder_out, sematic_embeds, cache=None):
decoder_outs = self.decoder.forward_chunk(
@@ -738,9 +1226,7 @@
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,
@@ -763,8 +1249,9 @@
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
assert 0.0 <= interctc_weight < 1.0, interctc_weight
@@ -894,7 +1381,6 @@
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, )
@@ -913,9 +1399,9 @@
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)
@@ -1003,74 +1489,72 @@
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"
@@ -1145,21 +1629,23 @@
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(
@@ -1170,7 +1656,6 @@
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, )
@@ -1253,7 +1738,8 @@
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
@@ -1282,9 +1768,7 @@
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,
@@ -1314,8 +1798,9 @@
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
assert 0.0 <= interctc_weight < 1.0, interctc_weight
@@ -1377,7 +1862,6 @@
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, )
--
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