IEICE Trans

Seiichi NAKAGAWA

Discriminative Learning of Filterbank Layer within Deep Neural Network Based Speech Recognition for Speaker Adaptation Hiroshi SEKI Kazumasa YAMAMOTO Tomoyosi AKIBA Seiichi NAKAGAWA
Publication: Publication Date: 2019/02/01 Vol. E102-D No. 2 pp. 364-374 Type of Manuscript: PAPER Category: Speech and Hearing Keyword: speech recognition, deep neural network, acoustic model, speaker adaptation, filterbank learning,
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Risk-Based Semi-Supervised Discriminative Language Modeling for Broadcast Transcription Akio KOBAYASHI Takahiro OKU Toru IMAI Seiichi NAKAGAWA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2012/11/01 Vol. E95-D No. 11 pp. 2674-2681 Type of Manuscript: PAPER Category: Speech and Hearing Keyword: discriminative training, semi-supervised training, language modeling, Bayes risk minimization,
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Class-Based N-Gram Language Model for New Words Using Out-of-Vocabulary to In-Vocabulary Similarity Welly NAPTALI Masatoshi TSUCHIYA Seiichi NAKAGAWA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2012/09/01 Vol. E95-D No. 9 pp. 2308-2317 Type of Manuscript: PAPER Category: Speech and Hearing Keyword: out-of-vocabulary, class-based n-gram, language model, adjusted perplexity, speech recognition,
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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 fields, hidden conditional random fields, hidden Markov model, speech recognition, deep learning,
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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 results, confusion network, automatic speech recognition, classroom lecture speech, sentence-level knowledge,
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Distant-Talking Speech Recognition Based on Spectral Subtraction by Multi-Channel LMS Algorithm Longbiao WANG Norihide KITAOKA Seiichi NAKAGAWA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2011/03/01 Vol. E94-D No. 3 pp. 659-667 Type of Manuscript: PAPER Category: Speech and Hearing Keyword: distant-talking speech recognition, blind dereverberation, multi-channel least mean squares, spectral subtraction, cepstral mean normalization,
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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 identification, phase information, MFCC, noisy environment, GMM,
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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 recognition, microphone array network, GMM-based CMN, speaker's position and orientation estimation,
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Evaluation of Combinational Use of Discriminant Analysis-Based Acoustic Feature Transformation and Discriminative Training Makoto SAKAI Norihide KITAOKA Yuya HATTORI Seiichi NAKAGAWA Kazuya TAKEDA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2010/02/01 Vol. E93-D No. 2 pp. 395-398 Type of Manuscript: LETTER Category: Speech and Hearing Keyword: speech recognition, feature extraction, discriminative training,
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Linear Discriminant Analysis Using a Generalized Mean of Class Covariances and Its Application to Speech Recognition Makoto SAKAI Norihide KITAOKA Seiichi NAKAGAWA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2008/03/01 Vol. E91-D No. 3 pp. 478-487 Type of Manuscript: Special Section PAPER (Special Section on Robust Speech Processing in Realistic Environments) Category: Feature Extraction Keyword: speech recognition, feature extraction, multidimensional signal processing,
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Noisy Speech Recognition Based on Integration/Selection of Multiple Noise Suppression Methods Using Noise GMMs Norihide KITAOKA Souta HAMAGUCHI Seiichi NAKAGAWA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2008/03/01 Vol. E91-D No. 3 pp. 411-421 Type of Manuscript: Special Section PAPER (Special Section on Robust Speech Processing in Realistic Environments) Category: Noisy Speech Recognition Keyword: noisy speech recognition, noise suppression method selection, CENSREC-1,
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Robust Speech Recognition by Combining Short-Term and Long-Term Spectrum Based Position-Dependent CMN with Conventional CMN Longbiao WANG Seiichi NAKAGAWA Norihide KITAOKA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2008/03/01 Vol. E91-D No. 3 pp. 457-466 Type of Manuscript: Special Section PAPER (Special Section on Robust Speech Processing in Realistic Environments) Category: ASR under Reverberant Conditions Keyword: robust speech recognition, distant-talking environment, CMN, long-term spectrum,
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A Machine Learning Approach for an Indonesian-English Cross Language Question Answering System Ayu PURWARIANTI Masatoshi TSUCHIYA Seiichi NAKAGAWA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2007/11/01 Vol. E90-D No. 11 pp. 1841-1852 Type of Manuscript: PAPER Category: Natural Language Processing Keyword: Cross Language Question Answering, Indonesian-English CLQA, limited resource language, machine learning,
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Text-Independent/Text-Prompted Speaker Recognition by Combining Speaker-Specific GMM with Speaker Adapted Syllable-Based HMM Seiichi NAKAGAWA Wei ZHANG Mitsuo TAKAHASHI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2006/03/01 Vol. E89-D No. 3 pp. 1058-1065 Type of Manuscript: Special Section PAPER (Special Section on Statistical Modeling for Speech Processing) Category: Speaker Recognition Keyword: speaker identification, GMM, HMM, text verification,
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Improving Keyword Recognition of Spoken Queries by Combining Multiple Speech Recognizer's Outputs for Speech-driven WEB Retrieval Task Masahiko MATSUSHITA Hiromitsu NISHIZAKI Takehito UTSURO Seiichi NAKAGAWA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2005/03/01 Vol. E88-D No. 3 pp. 472-480 Type of Manuscript: Special Section PAPER (Special Section on Corpus-Based Speech Technologies) Category: Spoken Language Systems Keyword: speech recognition, machine learning, multiple LVCSR models, WEB retrieval,
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An Unsupervised Speaker Adaptation Method for Lecture-Style Spontaneous Speech Recognition Using Multiple Recognition Systems Seiichi NAKAGAWA Tomohiro WATANABE Hiromitsu NISHIZAKI Takehito UTSURO
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2005/03/01 Vol. E88-D No. 3 pp. 463-471 Type of Manuscript: Special Section PAPER (Special Section on Corpus-Based Speech Technologies) Category: Spoken Language Systems Keyword: spontaneous speech recognition, unsupervised speaker adaptation, confidence measure, multiple LVCSR models,
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A Statistical Method of Evaluating Pronunciation Proficiency for English Words Spoken by Japanese Seiichi NAKAGAWA Naoki NAKAMURA Kazumasa MORI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2004/07/01 Vol. E87-D No. 7 pp. 1917-1922 Type of Manuscript: PAPER Category: Speech and Hearing Keyword: CALL, evaluation of pronunciation proficiency, English learning, speech recognition,
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Continuous Speech Recognition Using an On-Line Speaker Adaptation Method Based on Automatic Speaker Clustering Wei ZHANG Seiichi NAKAGAWA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2003/03/01 Vol. E86-D No. 3 pp. 464-473 Type of Manuscript: Special Section PAPER (Special Issue on Speech Information Processing) Category: Speech and Speaker Recognition Keyword: speaker adaptation, speech recognition, speaker clustering, MLLR, MAP,
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A Survey on Automatic Speech Recognition Seiichi NAKAGAWA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2002/03/01 Vol. E85-D No. 3 pp. 465-486 Type of Manuscript: INVITED SURVEY PAPER Category: Speech and Hearing Keyword: speech recognition, acoustic model, HMM, language model, ngram,
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Text-Independent Speaker Identification Utilizing Likelihood Normalization Technique Konstantin P. MARKOV Seiichi NAKAGAWA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 1997/05/25 Vol. E80-D No. 5 pp. 585-593 Type of Manuscript: PAPER Category: Speech Processing and Acoustics Keyword: speaker identification, likelihood normalization, frame level processing,
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Succeeding Word Prediction for Speech Recognition Based on Stochastic Language Model Min ZHOU Seiichi NAKAGAWA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 1996/04/25 Vol. E79-D No. 4 pp. 333-342 Type of Manuscript: PAPER Category: Speech Processing and Acoustics Keyword: stochastic language model, bigram, trigram, HMM, bigram-HMM, context-free grammar, entropy, perplexity, prediction rate,
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Relationship among Recognition Rate, Rejection Rate and False Alarm Rate in a Spoken Word Recognition System Atsuhiko KAI Seiichi NAKAGAWA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 1995/06/25 Vol. E78-D No. 6 pp. 698-704 Type of Manuscript: Special Section PAPER (Special Issue on Spoken Language Processing) Category: Keyword: speech recognition, unknown word processing, simulation, rejection rate,
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A Comparative Study of Output Probability Functions in HMMs Seiichi NAKAGAWA Li ZHAO Hideyuki SUZUKI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 1995/06/25 Vol. E78-D No. 6 pp. 669-675 Type of Manuscript: Special Section PAPER (Special Issue on Spoken Language Processing) Category: Keyword: HMM, RBF-based HMM, VQ-distortion based HMM, output probability function, speaker-independent, spoken digit recognition,
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A Spoken Dialog System with Verification and Clarification Queries Mikio YAMAMOTO Satoshi KOBAYASHI Yuji MORIYA Seiichi NAKAGAWA
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 1993/01/25 Vol. E76-D No. 1 pp. 84-94 Type of Manuscript: Special Section PAPER (Special Issue on Speech and Discourse Processing in Dialogue Systems) Category: Keyword: natural language processing, speech recognition, dialog system, verification, clarification,
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Comparison of Language Models by Context-Free Grammar, Bigram and Quasi/Simplified-Trigram Seiichi NAKAGAWA Isao MURASE
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1991/07/25 Vol. E74-A No. 7 pp. 1897-1905 Type of Manuscript: Special Section PAPER (Special Issue on Continuous Speech Recognition and Understanding) Category: Language Modeling Keyword:
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Comparison of Syntax-0riented Spoken Japanese Understanding System with Semantic-Oriented System Seiichi NAKAGAWA Yoshimitsu HIRATA Isao MURASE Tomohiro TANOUE
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1991/07/25 Vol. E74-A No. 7 pp. 1854-1862 Type of Manuscript: Special Section PAPER (Special Issue on Continuous Speech Recognition and Understanding) Category: Speech Understanding Keyword:
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