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Paper Abstract and Keywords
Presentation 2008-12-09 14:35
Speech Feature Extraction Using Constrained Nonnegative Matrix Factorization
Hyunsin Park, Tetsuya Takiguchi, Yasuo Ariki (Kobe Univ.) NLC2008-31 SP2008-86
Abstract (in Japanese) (See Japanese page) 
(in English) n this paper, we propose a speech feature extraction approach using nonnegative matrix factorization (NMF), and a new initialization approach for NMF. NMF is excellent at extracting local feature using nonnegative constraint. This method has been applied to data of text, image, or sound. In this paper, we apply this method to speech feature extraction. Recently, initialization methods based on SVD or clustering methods for NMF have been proposed. In this paper, a new initialization method using correlation information for NMF is described. A sparseness of base vector is additionally constrained to NMF. In comparison experiment among initialization methods, our proposed method shows effectiveness at estimate error and word speech recognition. The new feature extraction method also shows effectiveness at word speech recognition compared to MFCC and features by principal component analysis or independent component analysis.
Keyword (in Japanese) (See Japanese page) 
(in English) Nonnegative matrix factorization / Correlation propagation initialization / Speech feature extraction / Isolated word speech recognition / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 338, SP2008-86, pp. 43-48, Dec. 2008.
Paper # SP2008-86 
Date of Issue 2008-12-02 (NLC, SP) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF NLC2008-31 SP2008-86

Conference Information
Committee SP NLC  
Conference Date 2008-12-09 - 2008-12-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Waseda Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SP 
Conference Code 2008-12-SP-NLC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Speech Feature Extraction Using Constrained Nonnegative Matrix Factorization 
Sub Title (in English)  
Keyword(1) Nonnegative matrix factorization  
Keyword(2) Correlation propagation initialization  
Keyword(3) Speech feature extraction  
Keyword(4) Isolated word speech recognition  
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1st Author's Name Hyunsin Park  
1st Author's Affiliation Kobe University (Kobe Univ.)
2nd Author's Name Tetsuya Takiguchi  
2nd Author's Affiliation Kobe University (Kobe Univ.)
3rd Author's Name Yasuo Ariki  
3rd Author's Affiliation Kobe University (Kobe Univ.)
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Speaker Author-1 
Date Time 2008-12-09 14:35:00 
Presentation Time 25 minutes 
Registration for SP 
Paper # NLC2008-31, SP2008-86 
Volume (vol) vol.108 
Number (no) no.337(NLC), no.338(SP) 
Page pp.43-48 
#Pages 6 
Date of Issue 2008-12-02 (NLC, SP) 

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