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A Phonetic Search Approach to the 2006 NIST Spoken Term Detection Evaluation

Wallace, Roy G., Vogt, Robert J., & Sridharan, Sridha (2007) A Phonetic Search Approach to the 2006 NIST Spoken Term Detection Evaluation. In Interspeech 2007 : 8th Annual Conference of the International Speech Communication Association, August 27-31, 2007, Antwerp, Belgium.

Abstract

This paper details the submission from the Speech and Audio Research Lab of Queensland University of Technology (QUT) to the inaugural 2006 NIST Spoken Term Detection Evaluation. The task involved accurately locating the occurrences of a specified list of English terms in a given corpus of broadcast news and conversational telephone speech. The QUT system uses phonetic decoding and Dynamic Match Lattice Spotting to rapidly locate search terms, combined with a neural network-based verification stage. The use of phonetic search means the system is open vocabulary and performs usefully (Actual Term-Weighted Value of 0.23) whilst avoiding the cost of a large vocabulary speech recognition engine.

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ID Code: 15476
Item Type: Conference Paper
Additional URLs:
ISSN: 1990-9772
Subjects: Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > ARTIFICIAL INTELLIGENCE AND IMAGE PROCESSING (080100) > Natural Language Processing (080107)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Institutes > Information Security Institute
Copyright Owner: Copyright 2007 International Speech Communication Association (ISCA)
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 07 Nov 2008
Last Modified: 29 Feb 2012 23:32

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