Rapid yet accurate speech indexing using dynamic match lattice spotting

Thambiratnam, Kishan & Sridharan, Sridha (2007) Rapid yet accurate speech indexing using dynamic match lattice spotting. IEEE Transactions on Audio, Speech and Language Processing, 15(1), pp. 346-357.

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The support for typically out-of-vocabulary query terms such as names, acronyms, and foreign words is an important requirement of many speech indexing applications. However, to date many unrestricted vocabulary indexing systems have struggled to provide a balance between good detection rate and fast query speeds. This paper presents a fast and accurate unrestricted vocabulary speech indexing technique named Dynamic Match Lattice Spotting (DMLS). The proposed method augments the conventional lattice spotting technique with dynamic sequence matching, together with a number of other novel algorithmic enhancements, to obtain a system that is capable of searching hours of speech in seconds while maintaining excellent detection performance

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32 citations in Scopus
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15 citations in Web of Science®

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ID Code: 67239
Item Type: Journal Article
Refereed: Yes
Keywords: Audio indexing, Information retrieval, Keyword spotting, Speech data mining, Speech indexing
DOI: 10.1109/TASL.2006.872615
ISSN: 1558-7916
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2006 IEEE
Deposited On: 12 Nov 2014 00:56
Last Modified: 13 Nov 2014 03:24

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