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IEICE Trans

Hirokazu MASATAKI


Domain Adaptation Based on Mixture of Latent Words Language Models for Automatic Speech Recognition
Ryo MASUMURA Taichi ASAMI Takanobu OBA Hirokazu MASATAKI Sumitaka SAKAUCHI Akinori ITO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2018/06/01
Vol. E101-D  No. 6  pp. 1581-1590
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
domain adaptationmixture modelinglatent words language modelslatent variable spaceautomatic speech recognition
 Summary | Full Text:PDF

Investigation of Combining Various Major Language Model Technologies including Data Expansion and Adaptation
Ryo MASUMURA Taichi ASAMI Takanobu OBA Hirokazu MASATAKI Sumitaka SAKAUCHI Akinori ITO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2016/10/01
Vol. E99-D  No. 10  pp. 2452-2461
Type of Manuscript:  Special Section PAPER (Special Section on Recent Advances in Machine Learning for Spoken Language Processing)
Category: Language modeling
Keyword: 
language modelsdirect decodingunsupervised adaptationrescoringspontaneous speech recognition
 Summary | Full Text:PDF

N-gram Approximation of Latent Words Language Models for Domain Robust Automatic Speech Recognition
Ryo MASUMURA Taichi ASAMI Takanobu OBA Hirokazu MASATAKI Sumitaka SAKAUCHI Satoshi TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2016/10/01
Vol. E99-D  No. 10  pp. 2462-2470
Type of Manuscript:  Special Section PAPER (Special Section on Recent Advances in Machine Learning for Spoken Language Processing)
Category: Language modeling
Keyword: 
language modelsdomain robustnesslatent words language modelsn-gram approximationautomatic speech recognition
 Summary | Full Text:PDF

Automatic Vocabulary Adaptation Based on Semantic and Acoustic Similarities
Shoko YAMAHATA Yoshikazu YAMAGUCHI Atsunori OGAWA Hirokazu MASATAKI Osamu YOSHIOKA Satoshi TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2014/06/01
Vol. E97-D  No. 6  pp. 1488-1496
Type of Manuscript:  Special Section PAPER (Special Section on Advances in Modeling for Real-world Speech Information Processing and its Application)
Category: Speech Recognition
Keyword: 
out-of-vocabularyvocabulary adaptationsemantic similarityacoustic similarity
 Summary | Full Text:PDF