MLDG-Decoder for THUYG-20

This is the source code for our paper: Improving Uyghur ASR systems with decoders using morpheme-based LMs.

Follow Kaldi's guide to build the toolkit. The morpheme-based decoder has been added into src/bin and src/bin/Makefile.

1. src/bin/MLDG-Decoder.cc
2. It will be built while the toolkit is built.
3. MLDG-Decoder is used in decode_biglm.sh.

THUYG-20 Data:

It's free for download at: https://openslr.org/22/

Original wrk on THUYG-20 by Dong Wang:

https://github.com/wangdong99/kaldi

1. latgen-biglm-faster-mapped is used to achieve the lowest WER
2. source code of latgen-biglm-faster-mapped is missing there
3. A Biglm wrapper for DNN-HMM systems cann't be found in Kaldi's source code neither: https://github.com/kaldi-asr/kaldi/tree/master/src/bin

THUYG-20 recipes:

You can run the scripts in egs/thuyg20 to reproduce our experimental results: https://github.com/studyself/kaldi/tree/master/egs/thuyg20/s5