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Feature info: using fbank feature, with cmvn, no speed perturb, dither
Training info: lr 0.001, batch size 32, 8 gpus, acc_grad 1, 240 epochs, dither 1.0
Decoding info: ctc_weight 0.1, reverse_weight 0.4, average_num 30
Git hash: 5a1342312668e7a5abb83aed1e53256819cebf95
decoding mode/chunk size
full
16
ctc greedy search
6.18
6.79
ctc prefix beam search
6.20
6.80
attention rescoring
5.39
5.78
LM + attention rescoring
5.35
5.73
Feature info: using fbank feature, with cmvn, no speed perturb
Training info: lr 0.002, batch size 22, 8 gpus, acc_grad 1, 240 epochs, dither 0.0
Decoding info: ctc_weight 0.1, reverse_weight 0.5, average_num 30
Git hash: 5a1342312668e7a5abb83aed1e53256819cebf95
decoding mode/chunk size
full
16
ctc greedy search
7.35
8.23
ctc prefix beam search
7.36
8.23
attention rescoring
6.09
6.70
LM + attention rescoring
6.07
6.55
Feature info: using fbank feature, with cmvn, no speed perturb.
Training info: lr 0.002, batch size 16, 8 gpus, acc_grad 1, 120 epochs, dither 1.0
Decoding info: ctc_weight 0.5, average_num 20
Git hash: 14d38085a8d966cf9e9577ffafc51d578dce954f
decoding mode/chunk size
full
16
8
4
attention decoder
6.23
6.42
6.58
7.20
ctc greedy search
6.98
7.75
8.21
9.91
ctc prefix beam search
7.02
7.76
8.21
9.93
attention rescoring
6.08
6.46
6.72
7.79
LM + attention rescoring
5.87
6.37
6.47
6.61
Unified Transformer Result
Feature info: using fbank feature, with cmvn, no speed perturb.
Training info: lr 0.002, batch size 22, 8 gpus, acc_grad 1, 180 epochs, dither 0.0
Decoding info: ctc_weight 0.5, average_num 30
Git hash: 14d38085a8d966cf9e9577ffafc51d578dce954f
decoding mode/chunk size
full
16
8
4
attention decoder
6.71
7.08
7.17
7.40
ctc greedy search
7.84
8.68
8.98
9.46
ctc prefix beam search
7.86
8.68
8.98
9.45
attention rescoring
6.71
7.31
7.51
7.85
LM + attention rescoring
6.35
7.02
7.24
7.52
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