ISCA Archive Interspeech 2005
ISCA Archive Interspeech 2005

Improved speech recognition word lattice translation by confidence measure

Abdulvohid Bozarov, Yoshinori Sagisaka, Ruiqiang Zhang, Genichiro Kikui

In conventional speech translation systems, Automatic Speech Recognition (ASR) produces a single hypothesis which is then translated by the SMT system. The translation results of SMT system are impaired by the word errors of the first best hypothesis in this approach more or less. To improve speech translation, we use a new word lattice translation approach which integrates multiple information sources from the speech recognition word lattice to discount the misrecognition. Furthermore, in order to improve speech translation and to reduce computation, we used N-bests cutoff, merging of identical word ids, and confidence measure. Experiments of Japanese-to-English speech translation showed that the proposed word lattice translation outperforms the conventional single best method.

doi: 10.21437/Interspeech.2005-731

Cite as: Bozarov, A., Sagisaka, Y., Zhang, R., Kikui, G. (2005) Improved speech recognition word lattice translation by confidence measure. Proc. Interspeech 2005, 3197-3200, doi: 10.21437/Interspeech.2005-731

  author={Abdulvohid Bozarov and Yoshinori Sagisaka and Ruiqiang Zhang and Genichiro Kikui},
  title={{Improved speech recognition word lattice translation by confidence measure}},
  booktitle={Proc. Interspeech 2005},