10th Annual Conference of the International Speech Communication Association

Brighton, United Kingdom
September 6-10, 2009

Posterior-Based Out of Vocabulary Word Detection in Telephone Speech

Stefan Kombrink (1), Lukáš Burget (1), Pavel Matějka (1), Martin Karafiát (1), Hynek Hermansky (2)

(1) Brno University of Technology, Czech Republic
(2) Johns Hopkins University, USA

In this paper we present an out-of-vocabulary word detector suitable for English conversational and read speech. We use an approach based on phone posteriors created by a Large Vocabulary Continuous Speech Recognition system and an additional phone recognizer, that allows detection of OOV and misrecognized words. In addition, the recognized word output can be transcribed more detailed using several classes. Reported results are on CallHome English and Wall Street Journal data.

Full Paper

Bibliographic reference.  Kombrink, Stefan / Burget, Lukáš / Matějka, Pavel / Karafiát, Martin / Hermansky, Hynek (2009): "Posterior-based out of vocabulary word detection in telephone speech", In INTERSPEECH-2009, 80-83.