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icefall/egs/aishell/ASR
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Fangjun Kuang 50d2281524
Add modified transducer loss for AIShell dataset (#219) 
* Add modified transducer for aishell.

* Minor fixes.

* Add extra data in transducer training.

The extra data is from http://www.openslr.org/62/

* Update export.py and pretrained.py

* Update CI to install pretrained models with aishell.

* Update results.

* Update results.

* Update README.

* Use symlinks to avoid copies.
2022-03-02 16:02:38 +08:00
..
conformer_ctc
Reset seed at the beginning of each epoch. (#221)
2022-02-21 15:16:39 +08:00
conformer_mmi
Reset seed at the beginning of each epoch. (#221)
2022-02-21 15:16:39 +08:00
local
Add modified transducer loss for AIShell dataset (#219)
2022-03-02 16:02:38 +08:00
tdnn_lstm_ctc
Reset seed at the beginning of each epoch. (#221)
2022-02-21 15:16:39 +08:00
transducer_stateless
Add modified transducer loss for AIShell dataset (#219)
2022-03-02 16:02:38 +08:00
transducer_stateless_modified
Add modified transducer loss for AIShell dataset (#219)
2022-03-02 16:02:38 +08:00
transducer_stateless_modified-2
Add modified transducer loss for AIShell dataset (#219)
2022-03-02 16:02:38 +08:00
prepare_aidatatang_200zh.sh
Add modified transducer loss for AIShell dataset (#219)
2022-03-02 16:02:38 +08:00
prepare.sh
Minor fixes for aishell (#218)
2022-02-19 22:28:19 +08:00
README.md
Add modified transducer loss for AIShell dataset (#219)
2022-03-02 16:02:38 +08:00
RESULTS.md
Add modified transducer loss for AIShell dataset (#219)
2022-03-02 16:02:38 +08:00
shared
Add aishell recipe (#30)
2021-11-18 10:00:47 +08:00

README.md

Introduction

Please refer to https://icefall.readthedocs.io/en/latest/recipes/aishell.html for how to run models in this recipe.

Transducers

There are various folders containing the name transducer in this folder. The following table lists the differences among them.

Encoder Decoder Comment
transducer_stateless Conformer Embedding + Conv1d with k2.rnnt_loss
transducer_stateless_modified Conformer Embedding + Conv1d with modified transducer from optimized_transducer
transducer_stateless_modified-2 Conformer Embedding + Conv1d with modified transducer from optimized_transducer + extra data

The decoder in transducer_stateless is modified from the paper Rnn-Transducer with Stateless Prediction Network. We place an additional Conv1d layer right after the input embedding layer.