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update bicifparaformer forward

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shixian.shi 2023-04-17 10:59:34 +08:00
parent cf8646cd92
commit 2d65e5e754
1 changed files with 53 additions and 0 deletions
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53
funasr/models/e2e_asr_paraformer.py
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@ -977,6 +977,59 @@ class BiCifParaformer(Paraformer):
loss_pre2 = self.criterion_pre(ys_pad_lens.type_as(pre_token_length2), pre_token_length2)
return loss_pre2
def _calc_att_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
pre_acoustic_embeds, pre_token_length, _, pre_peak_index, _ = self.predictor(encoder_out, ys_pad, encoder_out_mask,
ignore_id=self.ignore_id)
# 0. sampler
decoder_out_1st = 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)
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
)
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
def calc_predictor(self, encoder_out, encoder_out_lens):