icefall/egs/multi_zh-hans/ASR/RESULTS.md

Results

WenetSpeech char-based training results (Non-streaming and streaming) on zipformer model

This is the pull request #1238 in icefall.

Non-streaming

Best results (num of params : ~68M):

The training command:

./zipformer/train.py \
  --world-size 4 \
  --num-epochs 23 \
  --use-fp16 1 \
  --max-duration 500 \
  --num-workers 8

Character Error Rates (CERs) listed below are produced by the checkpoint of the 20th epoch using greedy search and BPE model ( # tokens is 2000, byte fallback enabled).

Datasets	aidatatang _200zh	aidatatang _200zh	alimeeting	alimeeting	aishell-1	aishell-1	aishell-2	aishell-2	aishell-4	magicdata	magicdata	kespeech-asr	kespeech-asr	kespeech-asr	WenetSpeech	WenetSpeech	WenetSpeech
Zipformer CER (%)	dev	test	eval	test	dev	test	dev	test	test	dev	test	dev phase1	dev phase2	test	dev	test meeting	test net
	3.2	3.67	23.15	24.78	2.91	3.04	3.59	4.03	15.68	3.68	3.12	6.69	3.19	8.01	9.32	7.05	8.78

The pre-trained model is available here : https://huggingface.co/zrjin/icefall-asr-multi-zh-hans-zipformer-2023-9-2