NDLI: Incremental ML estimation of HMM parameters for efficient training

Content Provider	IEEE Xplore Digital Library
Author	Gotoh, Y. Silverman, H.F.
Copyright Year	1996
Description	Author affiliation: Div. of Eng., Brown Univ., Providence, RI, USA (Gotoh, Y.)
Abstract	Conventional training of a hidden Markov model (HMM) is performed by an expectation-maximization algorithm using a maximum likelihood (ML) criterion. It was reported that, using an incremental variant of maximum a posteriori estimation, substantial speed improvements could be obtained. The approach requires a prior distribution when the training starts, although it is difficult to find an appropriate prior for some cases. This paper presents a new approach for achieving an efficient training of HMM parameters using the standard ML criterion. A prior distribution is not required. The algorithm sequentially selects a subset of data from the training set, updates the parameters from the subset, then iterates until convergence. There is a solid theoretical foundation that ensures a monotone likelihood improvement; thus stable convergence is guaranteed. Experimental results indicate substantially faster convergence than the standard batch training algorithm while holding the same level of recognition performance.
Starting Page	585
Ending Page	588
File Size	491594
Page Count	4
File Format	PDF
ISBN	0780331923
ISSN	15206149
DOI	10.1109/ICASSP.1996.543188
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-05-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Maximum likelihood estimation Parameter estimation Hidden Markov models Convergence Solids Speech Statistics Extraterrestrial measurements Electronic mail Expectation-maximization algorithms
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	Mr. Siddhartha Mukherjee siddhartha@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	ndl-support@iitkgp.ac.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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