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Merge branch 'otc' of https://github.com/DongjiGao/icefall into otc

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Dongji Gao 2023-09-21 12:19:28 -04:00
commit e964dc8960
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egs/librispeech/WSASR/README.md
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@ -49,7 +49,9 @@ The weight of $\star$ is the log average probability of "a" and "b": $\log \frac
## Description of the recipe
### Preparation
```
feature_dir="data/ssl"
# feature_type can be ssl or fbank
feature_type=ssl
feature_dir="data/${feature_type}"
manifest_dir="${feature_dir}"
lang_dir="data/lang"
lm_dir="data/lm"
@ -57,6 +59,7 @@ exp_dir="conformer_ctc2/exp"
otc_token="<star>"
./prepare.sh \
--feature-type "${feature_type}" \
--feature-dir "${feature_dir}" \
--lang-dir "${lang_dir}" \
--lm-dir "${lm_dir}" \
@ -125,6 +128,7 @@ The bypass arc deals with substitution and insertion errors, while the self-loop
```
export CUDA_VISIBLE_DEVICES="0"
./conformer_ctc2/decode.py \
--manifest-dir "${manifest_dir}" \
--exp-dir "${exp_dir}" \
--lang-dir "${otc_lang_dir}" \
--lm-dir "${lm_dir}" \
@ -132,17 +136,62 @@ export CUDA_VISIBLE_DEVICES="0"
```
### Results (ctc-greedy-search)
| Traning Criterion | test-clean | test-other |
|------------|:-------:|:----:|
| CTC |100.0|100.0 |
| OTC | 11.89 | 25.46 |
<table>
<tr>
<td rowspan=2>Training Criterion</td>
<td colspan=2>ssl</td>
<td colspan=2>fbank</td>
</tr>
<tr>
<td>test-clean</td>
<td>test-other</td>
<td>test-clean</td>
<td>test-other</td>
</tr>
<tr>
<td>CTC</td>
<td>100.0</td>
<td>100.0</td>
<td>99.89</td>
<td>99.98</td>
</tr>
<tr>
<td>OTC</td>
<td>11.89</td>
<td>25.46</td>
<td>20.14</td>
<td>44.24</td>
</tr>
</table>
### Results (1best, blank_bias=-4)
| Traning Criterion | test-clean | test-other |
|------------|:-------:|:----:|
| CTC |98.40|98.68 |
| OTC | 6.59 | 15.98 |
<table>
<tr>
<td rowspan=2>Training Criterion</td>
<td colspan=2>ssl</td>
<td colspan=2>fbank</td>
</tr>
<tr>
<td>test-clean</td>
<td>test-other</td>
<td>test-clean</td>
<td>test-other</td>
</tr>
<tr>
<td>CTC</td>
<td>98.40</td>
<td>98.68</td>
<td>99.79</td>
<td>99.86</td>
</tr>
<tr>
<td>OTC</td>
<td>6.59</td>
<td>15.98</td>
<td>11.78</td>
<td>32.38</td>
</tr>
</table>
## Citations
```