Koji IWANO


Error Correction Using Long Context Match for Smartphone Speech Recognition
Yuan LIANG Koji IWANO Koichi SHINODA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2015/11/01
Vol. E98-D  No. 11  pp. 1932-1942
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
speech recognitionerror correctionmultimodal interfaceword confusion networkcontext match
 Summary | Full Text:PDF(674KB)

Spectral Subtraction Based on Non-extensive Statistics for Speech Recognition
Hilman PARDEDE Koji IWANO Koichi SHINODA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2013/08/01
Vol. E96-D  No. 8  pp. 1774-1782
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
robust speech recognitionspectral subtractionGaussian distributionq-Gaussianmaximum likelihood
 Summary | Full Text:PDF(551KB)

Evaluation of a Noise-Robust Multi-Stream Speaker Verification Method Using F0 Information
Taichi ASAMI Koji IWANO Sadaoki FURUI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2008/03/01
Vol. E91-D  No. 3  pp. 549-557
Type of Manuscript:  Special Section PAPER (Special Section on Robust Speech Processing in Realistic Environments)
Category: Speaker Verification
Keyword: 
speaker verificationF0 informationmulti-stream HMMsstream-weight and threshold optimizationAdaboost
 Summary | Full Text:PDF(473KB)

Noise Robust Speech Recognition Using F0 Contour Information
Koji IWANO Takahiro SEKI Sadaoki FURUI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2004/05/01
Vol. E87-D  No. 5  pp. 1102-1109
Type of Manuscript:  Special Section PAPER (Special Section on Speech Dynamics by Ear, Eye, Mouth and Machine)
Category: 
Keyword: 
noise robust speech recognitionprosodyfundamental frequency (F0) contourmulti-stream HMMHough transform
 Summary | Full Text:PDF(1.1MB)