“Selected Topics from Recent Research on
Speech Recognition at Tokyo Tech”
Sadaoki Furui, Tokyo Institute of Technology
Sponsored by the Dallas Chapter of the IEEE Signal Processing Society
Abstract
This talk introduces several topics selected from recent activities on automatic speech recognition (ASR) research in our laboratory. They include 1) development of the flexible and high-speed WFST-based T3 decoder and its application to large-vocabulary continuous speech recognition and ASR for resource-deficient languages; 2) cross-validation and aggregated adaptation algorithms for reducing over-training problems in unsupervised acoustic model adaptation; 3) automatic generation of abbreviations for Chinese-named entities and its application to voice search; and 4) improving an inference network-based Indonesian spoken query information retrieval system by proper-noun adaptation, English-to-Indonesian phoneme mapping and confidence score-based term weighting.
Bio
Sadaoki Furui is a professor of computer science at the Tokyo Institute of Technology. He is engaged in a wide range of research on speech analysis, speech recognition, speaker recognition, speech synthesis and multimodal human-computer interaction. He has authored or co-authored over 800 articles. He is a fellow of the IEEE, the International Speech Communication Association (ISCA), the Institute of Electronics, Information and Communication Engineers of Japan (IEICE) and the Acoustical Society of America. He has served as president of the Acoustical Society of Japan (ASJ) and the ISCA. He has served as a member of the Board of Governors of the IEEE Signal Processing (SP) Society and editor-in-chief of both the Transactions of the IEICE and the Journal of Speech Communication. He has received the Yonezawa Prize, the Paper Award and the Achievement Award from the IEICE (1975, ‘88, ‘93, 2003, 2008), and the Sato Paper Award from the ASJ (1985, ‘87). He has received the Senior Award and Society Award from the IEEE SP Society (1989, 2006), the Achievement Award from the Minister of Science and Technology and the Minister of Education, Japan (1989, 2006), the Purple Ribbon Medal from the Japanese Emperor (2006) and the ISCA Medal for Scientific Achievement (2009). In 1993 he served as an IEEE SPS distinguished lecturer.
