Title :
The BBN Byblos 1997 large vocabulary conversational speech recognition system
Author :
Zavaliagkos, G. ; McDonough, J. ; Miller, D. ; El-Jaroudi, A. ; Billa, J. ; Richardson, F. ; Ma, K. ; Siu, M. ; Gish, H.
Author_Institution :
GTE/BBN Technol., Cambridge, MA, USA
Abstract :
This paper presents the 1997 BBN Byblos large vocabulary speech recognition (LVCSR) system. We give an outline of the algorithms and procedures used to train the system, describe the recognizer configuration and present the major technological innovations that lead to the performance improvements. The major testbed we present our results for is the Switchboard corpus, where current word error rates vary from 27% to 34% depending on the test set. In addition, we present results on the CallHome Spanish and Arabic tests, where we demonstrate that technology developed on English corpora is very much portable to other problems and languages
Keywords :
acoustic signal processing; hidden Markov models; natural languages; speech processing; speech recognition; 1997 BBN Byblos LVCSR; CallHome Spanish tests; CallHome tests; English corpora; HMM; Switchboard corpus; acoustic models; algorithms; languages; large vocabulary conversational speech recognition system; performance; recognizer configuration; system training; test set; testbed; word error rates; Error analysis; Maximum likelihood decoding; Natural languages; Signal processing; Signal processing algorithms; Speech recognition; Technological innovation; Telephony; Testing; Vocabulary;
Conference_Titel :
Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4428-6
DOI :
10.1109/ICASSP.1998.675412
