Sumitaka SAKAUCHI


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:   
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(792.7KB)

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(333.7KB)

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(539.2KB)

An Estimation Method of Sound Source Orientation Using Eigenspace Variation of Spatial Correlation Matrix
Kenta NIWA Yusuke HIOKA Sumitaka SAKAUCHI Ken'ichi FURUYA Yoichi HANEDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/09/01
Vol. E96-A  No. 9  pp. 1831-1839
Type of Manuscript:  PAPER
Category: Engineering Acoustics
Keyword: 
Microphone arraysound source orientationreflected soundtransfer functionspatial correlation matrix
 Summary | Full Text:PDF(2MB)

Subjective Assessment of the Desired Echo Return Loss for Subband Acoustic Echo Cancellers
Sumitaka SAKAUCHI Yoichi HANEDA Shoji MAKINO Masashi TANAKA Yutaka KANEDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/12/25
Vol. E83-A  No. 12  pp. 2633-2639
Type of Manuscript:  PAPER
Category: Engineering Acoustics
Keyword: 
hands-free telecommunicationsubband echo cancellertransmission delayreverberationauditory characteristics
 Summary | Full Text:PDF(1.3MB)