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Paper Abstract and Keywords
Presentation 2008-12-10 16:10
Speech Recognition Based on Statistical Models Including Multiple Decision Trees
Sayaka Shiota, Kei Hashimoto, Yoshihiko Nankaku, Akinobu Lee, Keiichi Tokuda (Nagoya Institute of Technology) NLC2008-61 SP2008-116
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a speech recoginition technique using multiple decision trees. In the use of context dependent models, the decision tree based context clustering is applied to find a parameter tying structure. However, the clustering is usually performed based on statistics of HMM state sequences which are obtained by unreliable
models without context clustering. To overcome this problem, we have proposed a simultaneous optimization technique of state sequences and decision trees based on annealing process using multiple decision trees. However, this technique uses a single decision tree in decoding. In this paper, we use multiple decision trees not only in training process but also in decoding within the same annealing framework.
Keyword (in Japanese) (See Japanese page) 
(in English) Continuous speech recognition / Acoustic modeling / Context clustering / Phonetic decision tree / Deterministic annealing / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 338, SP2008-116, pp. 221-226, Dec. 2008.
Paper # SP2008-116 
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 NLC2008-61 SP2008-116

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 English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Speech Recognition Based on Statistical Models Including Multiple Decision Trees 
Sub Title (in English)  
Keyword(1) Continuous speech recognition  
Keyword(2) Acoustic modeling  
Keyword(3) Context clustering  
Keyword(4) Phonetic decision tree  
Keyword(5) Deterministic annealing  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Sayaka Shiota  
1st Author's Affiliation Nagoya Institute of Technology (Nagoya Institute of Technology)
2nd Author's Name Kei Hashimoto  
2nd Author's Affiliation Nagoya Institute of Technology (Nagoya Institute of Technology)
3rd Author's Name Yoshihiko Nankaku  
3rd Author's Affiliation Nagoya Institute of Technology (Nagoya Institute of Technology)
4th Author's Name Akinobu Lee  
4th Author's Affiliation Nagoya Institute of Technology (Nagoya Institute of Technology)
5th Author's Name Keiichi Tokuda  
5th Author's Affiliation Nagoya Institute of Technology (Nagoya Institute of Technology)
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Speaker Author-1 
Date Time 2008-12-10 16:10:00 
Presentation Time 110 minutes 
Registration for SP 
Paper # NLC2008-61, SP2008-116 
Volume (vol) vol.108 
Number (no) no.337(NLC), no.338(SP) 
Page pp.221-226 
#Pages 6 
Date of Issue 2008-12-02 (NLC, SP) 

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