Paper: Improved Keyword-Spotting Using SRI'S DECIPHER (TM) Large-Vocabuarly Speech-Recognition System

ACL ID H93-1022
Title Improved Keyword-Spotting Using SRI'S DECIPHER (TM) Large-Vocabuarly Speech-Recognition System
Venue Human Language Technologies
Session Main Conference
Year 1993
Authors

The word-spotting task is analogous to text-based infor- marion retrieval tasks and message-understanding tasks in that an exhaustive accounting of the input is not required: only a useful subset of the full information need be extracted in the task. Tradi- tional approaches have focussed on the keywords involved. We have shown that accounting for more of the data, by using a large-vocabulary recognizer for the wordspotting task, can lead to dramatic improvements relative to traditional approaches. This result may well be generalizable to the analogous text-based tasks. The approach described makes several novel contribu- tions, including: (1) a method for dramatic improvement in the FOM (figure of merit) for word-spotting results compared to more traditional approaches; (2) a demonstratio...