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Paper Abstract and Keywords
Presentation 2019-03-15 13:30
[Poster Presentation] A Design of Reduced Phoneme Set Based on a Language Model
Shuji Komeiji, Toshihisa Tanaka (Tokyo Univ. of Agriculture and Tech.) EA2018-134 SIP2018-140 SP2018-96
Abstract (in Japanese) (See Japanese page) 
(in English) A design of reduced phoneme set based on a language model is proposed. The reduction of the phoneme set improves discriminability of phonemes under the condition where the amount of training data is too small to train each phoneme model. On the other hand, it increases homophones that yield degradation of speech recognition. In the proposed approach, it is possible to reduce phonemes preventing degradation, regarding pronunciation/word sequence confusion rate calculated from N-grams in a language model. In an experiment, the phoneme set designed with proposed approach was applied to Japanese large vocabulary speech recognition system. The word error rate with the 10 phonemes set was 14.6%, while the error rate with full 39 phonemes set was 17.7%. The degradation was able to be suppressed in about 3%.
Keyword (in Japanese) (See Japanese page) 
(in English) Automatic speech recognition / Brain machine interface / Phoneme set / Language model / N-gram / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 496, SIP2018-140, pp. 205-210, March 2019.
Paper # SIP2018-140 
Date of Issue 2019-03-07 (EA, SIP, SP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 EA2018-134 SIP2018-140 SP2018-96

Conference Information
Committee EA SIP SP  
Conference Date 2019-03-14 - 2019-03-15 
Place (in Japanese) (See Japanese page) 
Place (in English) i+Land nagasaki (Nagasaki-shi) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Engineering/Electro Acoustics, Signal Processing, Speech, and Related Topics 
Paper Information
Registration To SIP 
Conference Code 2019-03-EA-SIP-SP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Design of Reduced Phoneme Set Based on a Language Model 
Sub Title (in English)  
Keyword(1) Automatic speech recognition  
Keyword(2) Brain machine interface  
Keyword(3) Phoneme set  
Keyword(4) Language model  
Keyword(5) N-gram  
1st Author's Name Shuji Komeiji  
1st Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo Univ. of Agriculture and Tech.)
2nd Author's Name Toshihisa Tanaka  
2nd Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo Univ. of Agriculture and Tech.)
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Date Time 2019-03-15 13:30:00 
Presentation Time 90 
Registration for SIP 
Paper # IEICE-EA2018-134,IEICE-SIP2018-140,IEICE-SP2018-96 
Volume (vol) IEICE-118 
Number (no) no.495(EA), no.496(SIP), no.497(SP) 
Page pp.205-210 
#Pages IEICE-6 
Date of Issue IEICE-EA-2019-03-07,IEICE-SIP-2019-03-07,IEICE-SP-2019-03-07 

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