NDLI: EMAP-based speaker adaptation with robust correlation estimation

Content Provider	IEEE Xplore Digital Library
Author	Eugene Jon Dong Kook Kim Nam Soo Kim
Copyright Year	2001
Description	Author affiliation: Sch. of Electr. & Comput. Eng., Seoul Nat. Univ., South Korea (Eugene Jon)
Abstract	We propose a method to enhance the performance of the extended maximum a posteriori (EMAP) estimation using the probabilistic principal component analysis (PPCA). PPCA is used to robustly estimate the correlation matrix among separate hidden Markov model (HMM) parameters. The correlation matrix is then applied to the EMAP scheme for speaker adaptation. PPCA is efficient to compute, and shows better performance compared to the method previously used for EMAP. Through various experiments on continuous digit recognition, it is shown that the EMAP approach based on the PPCA gives enhanced performance especially for a small amount of adaptation data.
Sponsorship	IEEE Signal Process. Soc
Starting Page	321
Ending Page	324
File Size	341952
Page Count	4
File Format	PDF
ISBN	0780370414
ISSN	15206149
DOI	10.1109/ICASSP.2001.940832
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-05-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robustness Principal component analysis Hidden Markov models Speech recognition Training data Maximum likelihood estimation Distribution functions Degradation Adaptation model Probability
Content Type	Text
Resource Type	Article

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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
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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
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EMAP-based speaker adaptation with robust correlation estimation