8th European Conference on Speech Communication and Technology

Geneva, Switzerland
September 1-4, 2003


Toward Domain-Independent Conversational Speech Recognition

Brian Kingsbury, Lidia Mangu, George Saon, Geoffrey Zweig, Scott Axelrod, Vaibhava Goel, Karthik Visweswariah, Michael Picheny

IBM T.J. Watson Research Center, USA

We describe a multi-domain, conversational test set developed for IBM's Superhuman speech recognition project and our 2002 benchmark system for this task. Through the use of multi-pass decoding, unsupervised adaptation and combination of hypotheses from systems using diverse feature sets and acoustic models, we achieve a word error rate of 32.0% on data drawn from voicemail messages, two-person conversations and multiple-person meetings.

Full Paper

Bibliographic reference.  Kingsbury, Brian / Mangu, Lidia / Saon, George / Zweig, Geoffrey / Axelrod, Scott / Goel, Vaibhava / Visweswariah, Karthik / Picheny, Michael (2003): "Toward domain-independent conversational speech recognition", In EUROSPEECH-2003, 1881-1884.