NDLI: Phonetic search using an anchor-based algorithm

Content Provider	IEEE Xplore Digital Library
Author	Tetariy, E. Aharonson, V. Moyal, A.
Copyright Year	2010
Description	Author affiliation: ACLP - Afeka Center for Language Processing, Afeka Academic College of Engineering, 218 Bney Efraim Rd. Tel Av iv 69107, Israel (Tetariy, E.; Aharonson, V.; Moyal, A.)
Abstract	The research presented here focuses on a Phonetic Search method used in long speech utterances using a very large vocabulary of words. Our main goal was to reduce the search space dimension and thus decrease the overall computational complexity without adversely affecting the recognition performance. The suggested method was compared to the Exhaustive Search method in which all possible hypotheses are considered. In order to reduce this search space, we developed a parametric algorithm based on anchor points which significantly reduces the number of hypotheses. Two types of anchors points were considered: A-Priori Anchor Points, which are preselected; and Dynamic Anchor Points, which are determined during the search process itself. Four different mechanisms for determining anchor points were tested and compared to the Exhaustive Search method using over 2000 utterances from the IBM Voicemail Databases and a 100k word lexicon. We show that all mechanisms lead to a more targeted and efficient search and to a substantial reduction in the computational complexity while maintaining recognition performance.
Starting Page	000468
Ending Page	000471
File Size	296665
Page Count	4
File Format	PDF
ISBN	9781424486816
e-ISBN	9781424486823
DOI	10.1109/EEEI.2010.5662176
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-17
Publisher Place	Israel
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Heuristic algorithms Vocabulary Engines Speech recognition Decoding Search problems
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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