RECENT IMPROVEMENTS IN VOICEMAIL TRANSCRIPTION

Abstract

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.