Kei HASHIMOTO


A Bayesian Approach to Image Recognition Based on Separable Lattice Hidden Markov Models
Kei SAWADA Akira TAMAMORI Kei HASHIMOTO Yoshihiko NANKAKU Keiichi TOKUDA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2016/12/01
Vol. E99-D  No. 12  pp. 3119-3131
Type of Manuscript:  PAPER
Category: Pattern Recognition
Keyword: 
image recognitionhidden Markov modelsseparable lattice hidden Markov modelsBayesian approachdeterministic annealing
 Summary | Full Text:PDF(972.5KB)

Integration of Spectral Feature Extraction and Modeling for HMM-Based Speech Synthesis
Kazuhiro NAKAMURA Kei HASHIMOTO Yoshihiko NANKAKU Keiichi TOKUDA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2014/06/01
Vol. E97-D  No. 6  pp. 1438-1448
Type of Manuscript:  Special Section PAPER (Special Section on Advances in Modeling for Real-world Speech Information Processing and its Application)
Category: HMM-based Speech Synthesis
Keyword: 
integrative modelHMM-based speech synthesisacoustic modelingmel-cepstral analysistrajectory HMM
 Summary | Full Text:PDF(1.7MB)

A Bayesian Framework Using Multiple Model Structures for Speech Recognition
Sayaka SHIOTA Kei HASHIMOTO Yoshihiko NANKAKU Keiichi TOKUDA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2013/04/01
Vol. E96-D  No. 4  pp. 939-948
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
speech recognitionacoustic modelingBayesian approachmodel structure integrationdeterministic annealing
 Summary | Full Text:PDF(548.8KB)

Bayesian Context Clustering Using Cross Validation for Speech Recognition
Kei HASHIMOTO Heiga ZEN Yoshihiko NANKAKU Akinobu LEE Keiichi TOKUDA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2011/03/01
Vol. E94-D  No. 3  pp. 668-678
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
Bayesian approachspeech recognitionHMMcontext clusteringcross validation
 Summary | Full Text:PDF(453.4KB)

A Reordering Model Using a Source-Side Parse-Tree for Statistical Machine Translation
Kei HASHIMOTO Hirofumi YAMAMOTO Hideo OKUMA Eiichiro SUMITA Keiichi TOKUDA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2009/12/01
Vol. E92-D  No. 12  pp. 2386-2393
Type of Manuscript:  Special Section PAPER (Special Section on Natural Language Processing and its Applications)
Category: Machine Translation
Keyword: 
phrase-based statistical machine translationreordering modelparse-treesyntactic information
 Summary | Full Text:PDF(254.4KB)