Sixth European Conference on Speech Communication and Technology
(EUROSPEECH'99)

Budapest, Hungary
September 5-9, 1999

Recent Improvements in Voicemail Transcription

Mukund Padmanabhan, G. Saon, S. Basu, Jing Huang, Geoffrey Zweig

IBM T. J. Watson Research Center Yorktown Heights, NY, USA

In this paper we report recent improvements in voicemail transcription. Last year, the speaker independent and speaker adapted word error rates (WER) on the Voicemail Transcription task were reported at 41.94% and 38.18% respectively. This year, we report a relative improvement of 18% in the speaker independent performance and 11% in the speaker adapted performance over last year. This improvement is a result of some new algorithms and an increase in the amount of training data. In the following sections, we describe the contribution of several components to improving the word error rate.


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Bibliographic reference.  Padmanabhan, Mukund / Saon, G. / Basu, S. / Huang, Jing / Zweig, Geoffrey (1999): "Recent improvements in voicemail transcription", In EUROSPEECH'99, 503-506.