Kazumasa YAMAMOTO


Architecture and Evaluation of Low Power Many-Core SoC with Two 32-Core Clusters
Takashi MIYAMORI Hui XU Hiroyuki USUI Soichiro HOSODA Toru SANO Kazumasa YAMAMOTO Takeshi KODAKA Nobuhiro NONOGAKI Nau OZAKI Jun TANABE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2014/04/01
Vol. E97-C  No. 4  pp. 360-368
Type of Manuscript:  Special Section PAPER (Special Section on Solid-State Circuit Design,---,Architecture, Circuit, Device and Design Methodology)
Category: 
Keyword: 
many-corenetwork-on-chipVLIWlow powerface detectionH.264super resolution
 Summary | Full Text:PDF(4.2MB)

Hidden Conditional Neural Fields for Continuous Phoneme Speech Recognition
Yasuhisa FUJII Kazumasa YAMAMOTO Seiichi NAKAGAWA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2012/08/01
Vol. E95-D  No. 8  pp. 2094-2104
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
hidden conditional neural fieldshidden conditional random fieldshidden Markov modelspeech recognitiondeep learning
 Summary | Full Text:PDF(324.9KB)

Improving the Readability of ASR Results for Lectures Using Multiple Hypotheses and Sentence-Level Knowledge
Yasuhisa FUJII Kazumasa YAMAMOTO Seiichi NAKAGAWA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2012/04/01
Vol. E95-D  No. 4  pp. 1101-1111
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
improving readability of ASR resultsconfusion networkautomatic speech recognitionclassroom lecture speechsentence-level knowledge
 Summary | Full Text:PDF(798.1KB)

Distant Speech Recognition Using a Microphone Array Network
Alberto Yoshihiro NAKANO Seiichi NAKAGAWA Kazumasa YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2010/09/01
Vol. E93-D  No. 9  pp. 2451-2462
Type of Manuscript:  Special Section PAPER (Special Section on Processing Natural Speech Variability for Improved Verbal Human-Computer Interaction)
Category: Microphone Array
Keyword: 
distant speech recognitionmicrophone array networkGMM-based CMNspeaker's position and orientation estimation
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Speaker Recognition by Combining MFCC and Phase Information in Noisy Conditions
Longbiao WANG Kazue MINAMI Kazumasa YAMAMOTO Seiichi NAKAGAWA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2010/09/01
Vol. E93-D  No. 9  pp. 2397-2406
Type of Manuscript:  Special Section PAPER (Special Section on Processing Natural Speech Variability for Improved Verbal Human-Computer Interaction)
Category: Speaker Recognition
Keyword: 
speaker identificationphase informationMFCCnoisy environmentGMM
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Mel-Wiener Filter for Mel-LPC Based Speech Recognition
Md. Babul ISLAM Kazumasa YAMAMOTO Hiroshi MATSUMOTO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2007/06/01
Vol. E90-D  No. 6  pp. 935-942
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
noisy speech recognitionMel-Wiener filterMel-LPC analysisbilinear transformationAurora 2 database
 Summary | Full Text:PDF(334.9KB)

AURORA-2J: An Evaluation Framework for Japanese Noisy Speech Recognition
Satoshi NAKAMURA Kazuya TAKEDA Kazumasa YAMAMOTO Takeshi YAMADA Shingo KUROIWA Norihide KITAOKA Takanobu NISHIURA Akira SASOU Mitsunori MIZUMACHI Chiyomi MIYAJIMA Masakiyo FUJIMOTO Toshiki ENDO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/03/01
Vol. E88-D  No. 3  pp. 535-544
Type of Manuscript:  Special Section PAPER (Special Section on Corpus-Based Speech Technologies)
Category: Speech Corpora and Related Topics
Keyword: 
noisy speech recognitionevaluation platformperformance differences over speakersevaluation categories
 Summary | Full Text:PDF(1.7MB)