The 1998 BBN BYBLOS Primary System applied to English and Spanish Broadcast News Transcription (1999)
| Venue: | in Proceedings of the DARPA Broadcast News Workshop |
BibTeX
@INPROCEEDINGS{Long99the1998,
author = {Spyros Matsoukas Long and Long Nguyen and Jason Davenport and Jay Billa and Fred Richardson and Manhung Siu and Daben Liu and Rich Schwartz and John Makhoul},
title = {The 1998 BBN BYBLOS Primary System applied to English and Spanish Broadcast News Transcription},
booktitle = {in Proceedings of the DARPA Broadcast News Workshop},
year = {1999}
}
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Abstract
In this paper, we describe the BBN BYBLOS system used for the 1998 Hub-4E primary and Hub-4Sp evaluation benchmarks, and discuss the improvements made to the system in 1998. We focus on the techniques that were new in this year's system, including processing of the acoustic training data, test segmentation, revised cepstral normalization and Vocal Tract Length Normalization (VTLN), band-specific models, Diagonal transform Speaker Adaptive Training (DSAT), and a modified ROVER method for system combination. We show that by combining all the above techniques, we were able to improve the recognition accuracy on the 1997 Hub-4E evaluation test by 27% relative to our 1997 system (from 20.4% to 14.8%). We also present our results on the 1998 Hub-4E and Hub4Sp benchmarks, and discuss the differences between the English and Spanish transcription systems. 1. INTRODUCTION The 1997 BBN BYBLOS system [1] was focused on improving the recognition accuracy of the F0 and F1 focus conditions (high fi...
Citations
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| 8 | Efficient 2-Pass N-Best Decoder - Schwartz - 1997 |
| 1 | et al., “The 1997 BBN BYBLOS System applied to Broadcast News Transcription - Kubala, Davenport - 1998 |
