From: Pronunciation augmentation for Mandarin-English code-switching speech recognition
System | ρ | Lexicon(avg.#prons) | Mandarin | Code-switching | Chilish |
---|---|---|---|---|---|
GMM-HMM | – | Source Lexicon | 17.5 | 23.7 | 27.0 |
0.1 | + LexLearn (3.65) | 17.8 | 22.8 | 26.4 | |
0.4 | + LexLearn (3.07) | 17.6 | 22.1 | 26.2 | |
0.7 | + LexLearn (2.41) | 17.6 | 21.6 | 26.0 | |
LF-MMI hybrid | – | Source Lexicon | 5.2 | 11.5 | 15.4 |
LF-MMI hybrid-1 | 0.7 | + LexLearn (2.41) | 5.7 | 10.9 | 15.2 |
LF-MMI hybrid-2 | 0.7 | + LexLearn (2.41) | 5.5 | 10.4 | 14.8 |