4th International Conference on Spoken Language Processing

Philadelphia, PA, USA
October 3-6, 1996

New Efficient Fillers for Unlimited Word Recognition and Keyword Spotting

Rachida El Méliani, Douglas O'Shaughnessy

INRS-Telecommunications, Ile-des-Surs, Québec, Canada

This paper describes our complete results for improved lexical fillers as well as two new kinds of fillers, gives their results in unlimited speech recognition as well as for keyword spot- ting and compares them to the acoustic-phonetic filler in the case of keyword spotting. Tests have been conducted on different vocabularies derived from ATIS and the Wall Street Journal database. Results for keyword spotting show the superiority of the independent lexical phonemic filler that combines accuracy (92% for a false alarm rate of 1.2 FA/h/kw) as well as task-independent training. As for new-word detection, the syllabic and the independent lexical fillers perform quite well, and allow relevant detection of the phonetic transcription.

Full Paper

Bibliographic reference.  Méliani, Rachida El / O'Shaughnessy, Douglas (1996): "New efficient fillers for unlimited word recognition and keyword spotting", In ICSLP-1996, 590-593.