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Paper Abstract and Keywords
Presentation 2011-12-20 10:30
Speaker Verification Using MMAP Adaptation
Sangeeta Biswas, Johan Rohdin, Koichi Shinoda, Sadaoki Furui (Tokyo Inst. of Tech.) NLC2011-48 SP2011-93
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes maximum a posteriori (MAP) adaptation of Gaussian mixture models (GMM) using multiple priors for text-independent speaker verification. Although the hierarchical prior used in structural MAP (SMAP) adaptation has been proven to outperform the prior used in relevance MAP adaptation, there may still be some complementary information in the relevance prior which might be useful. An idea of combining these two priors is introduced here in the MAP framework. We call this method multiprior MAP (MMAP). We evaluated our proposed method on NIST SRE 2006 10sec4w-10sec4w task. We compared MMAP with classical maximum likelihood (ML) estimation, relevance MAP and SMAP adaptation techniques and proved its effectiveness. We also investigated the effect of Z-Norm and T-Norm on the likelihood ratio scores of different systems here.
Keyword (in Japanese) (See Japanese page) 
(in English) Speaker verification / speaker adaptation / MAP / hierarchical prior / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 365, SP2011-93, pp. 133-137, Dec. 2011.
Paper # SP2011-93 
Date of Issue 2011-12-12 (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 NLC2011-48 SP2011-93

Conference Information
Committee SP NLC IPSJ-SLP  
Conference Date 2011-12-19 - 2011-12-20 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SP 
Conference Code 2011-12-SP-NLC-SLP 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Speaker Verification Using MMAP Adaptation 
Sub Title (in English)  
Keyword(1) Speaker verification  
Keyword(2) speaker adaptation  
Keyword(3) MAP  
Keyword(4) hierarchical prior  
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1st Author's Name Sangeeta Biswas  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
2nd Author's Name Johan Rohdin  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
3rd Author's Name Koichi Shinoda  
3rd Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
4th Author's Name Sadaoki Furui  
4th Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
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Speaker Author-1 
Date Time 2011-12-20 10:30:00 
Presentation Time 25 minutes 
Registration for SP 
Paper # NLC2011-48, SP2011-93 
Volume (vol) vol.111 
Number (no) no.364(NLC), no.365(SP) 
Page pp.133-137 
#Pages 5 
Date of Issue 2011-12-12 (NLC, SP) 

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