NDLI: Speech activity detection: An economics approach

Content Provider	IEEE Xplore Digital Library
Author	Tsai, T. Morgan, N.
Copyright Year	2013
Description	Author affiliation: Univ. of California Berkeley, Berkeley, CA, USA (Tsai, T.; Morgan, N.)
Abstract	This paper proposes an approach to frame-level speech activity detection based on the extended metaphor of an economics marketplace. As in a real marketplace, the simulated marketplace encourages features to specialize. Features that might not have impressive average performance across the entire data set might nonetheless perform very well on a subset of the data, and the marketplace capitalizes on this specialization by consulting the features only when their expertise is relevant. On an experimental data set, we show that the framework is able to effectively utilize the expertise of a set of voicing-related features. For the 50% of the data that fell within these features' realm of expertise, we observe an 83% reduction in false alarm errors and 19% reduction in miss detect errors compared to a baseline HMM-GMM system with MFCCs. Even when we consult these features for the entire data set, thus including the other 50% of data outside their realm of expertise, we still observe a 20% total reduction in equal error rate compared to the baseline system. Analysis of the marketplace transactions also yields useful insight into how the errors are distributed across the data and which types of features are most useful.
Starting Page	6842
Ending Page	6846
File Size	113834
Page Count	5
File Format	PDF
ISBN	9781479903566
ISSN	15206149
DOI	10.1109/ICASSP.2013.6638987
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-05-26
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Speech Hidden Markov models Trajectory Training Economics Biological system modeling Computational modeling feature specialization speech activity detection
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 Libarray 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
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
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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