Comparative evaluation of segmental unit input HMM and conditional density HMM. - Kazumasa Yamamoto; Seiichi Nakagawa (EUROSPEECH, 1995)

Evaluation of segmental unit input HMM. - Seiichi Nakagawa; Kazumasa Yamamoto (ICASSP, 1996)

Speech recognition using hidden Markov models based on segmental statistics. - Seiichi Nakagawa; Kazumasa Yamamoto (Syst. Comput. Jpn., 1997)

Continuous speech recognition using segmental unit input HMMs with a mixture of probability density functions and context dependency. - Kengo Hanai; Kazumasa Yamamoto; Nobuaki Minematsu; Seiichi Nakagawa (ICSLP, 1998)

HMM composition of segmental unit input HMM for noisy speech recognition. - Kazumasa Yamamoto; Seiichi Nakagawa (EUROSPEECH, 1999)

Forward masking on a generalized logarithmic scale for robust speech recognition. - Yoshihiro Ito; Hiroshi Matsumoto; Kazumasa Yamamoto (INTERSPEECH, 2000)

Relationship among speaking style, inter-phoneme's distance and speech recognition performance. - Kazumasa Yamamoto; Seiichi Nakagawa (INTERSPEECH, 2000)

Evaluation of a generalized dynamic cepstrum in distant speech recognition. - Hiroshi Matsumoto; Akihiko Shimizu; Kazumasa Yamamoto (INTERSPEECH, 2001)

Differences of speech rate, interphoneme distance and likelihood caused by speaking style, their relationship, and recognition performance. - Kazumasa Yamamoto; Seiichi Nakagawa (Syst. Comput. Jpn., 2002)

Speech recognition under noisy environments using segmental unit input HMM. - Kazumasa Yamamoto; Seiichi Nakagawa (Syst. Comput. Jpn., 2002)

Integration of noise reduction algorithms for Aurora2 task. - Takeshi Yamada; Jiro Okada; Kazuya Takeda; Norihide Kitaoka; Masakiyo Fujimoto; Shingo Kuroiwa; Kazumasa Yamamoto; Takanobu Nishiura; Mitsunori Mizumachi; Satoshi Nakamura 001 (INTERSPEECH, 2003)

CENSREC-3: Data Collection for In-Car Speech Recognition and Its Common Evaluation Framework. - Masakiyo Fujimoto; Satoshi Nakamura 001; Toshiki Endo; Kazuya Takeda; Chiyomi Miyajima; Shingo Kuroiwa; Takeshi Yamada; Norihide Kitaoka; Kazumasa Yamamoto; Mitsunori Mizumachi; Takanobu Nishiura; Akira Sasou (ICDE Workshops, 2005)

AURORA-2J: An Evaluation Framework for Japanese Noisy Speech Recognition. - Satoshi Nakamura 001; Kazuya Takeda; Kazumasa Yamamoto; Takeshi Yamada; Shingo Kuroiwa; Norihide Kitaoka; Takanobu Nishiura; Akira Sasou; Mitsunori Mizumachi; Chiyomi Miyajima; Masakiyo Fujimoto; Toshiki Endo (IEICE Trans. Inf. Syst., 2005)

An improved mel-wiener filter for mel-LPC based speech recognition. - Md. Babul Islam; Hiroshi Matsumoto; Kazumasa Yamamoto (INTERSPEECH, 2006)

Development of VAD evaluation framework CENSREC-1-C and investigation of relationship between VAD and speech recognition performance. - Norihide Kitaoka; Kazumasa Yamamoto; Tomohiro Kusamizu; Seiichi Nakagawa; Takeshi Yamada; Satoru Tsuge; Chiyomi Miyajima; Takanobu Nishiura; Masato Nakayama; Yuki Denda; Masakiyo Fujimoto; Tetsuya Takiguchi; et al. (ASRU, 2007)

Mel-Wiener Filter for Mel-LPC Based Speech Recognition. - Md. Babul Islam; Kazumasa Yamamoto; Hiroshi Matsumoto (IEICE Trans. Inf. Syst., 2007)

Class lecture summarization taking into account consecutiveness of important sentences. - Yasuhisa Fujii; Kazumasa Yamamoto; Norihide Kitaoka; Seiichi Nakagawa (INTERSPEECH, 2008)

Speech recognition performance of CJLC: corpus of Japanese lecture contents. - Satoru Kogure; Hiromitsu Nishizaki; Masatoshi Tsuchiya; Kazumasa Yamamoto; Shingo Togashi; Seiichi Nakagawa (INTERSPEECH, 2008)

CENSREC-4: development of evaluation framework for distant-talking speech recognition under reverberant environments. - Masato Nakayama; Takanobu Nishiura; Yuki Denda; Norihide Kitaoka; Kazumasa Yamamoto; Takeshi Yamada; Satoru Tsuge; Chiyomi Miyajima; Masakiyo Fujimoto; Tetsuya Takiguchi; Satoshi Tamura; Tetsuji Ogawa; et al. (INTERSPEECH, 2008)

Evaluation Framework for Distant-talking Speech Recognition under Reverberant Environments: newest Part of the CENSREC Series -. - Takanobu Nishiura; Masato Nakayama; Yuki Denda; Norihide Kitaoka; Kazumasa Yamamoto; Takeshi Yamada; Satoru Tsuge; Chiyomi Miyajima; Masakiyo Fujimoto; Tetsuya Takiguchi; Satoshi Tamura; Shingo Kuroiwa; et al. (LREC, 2008)

Privacy Protection for Speech Information. - Kazumasa Yamamoto; Seiichi Nakagawa (IAS, 2009)

Estimating the position and orientation of an acoustic source with a microphone array network. - Alberto Yoshihiro Nakano; Seiichi Nakagawa; Kazumasa Yamamoto (INTERSPEECH, 2009)

CENSREC-1-AV: an audio-visual corpus for noisy bimodal speech recognition. - Satoshi Tamura; Chiyomi Miyajima; Norihide Kitaoka; Takeshi Yamada; Satoru Tsuge; Tetsuya Takiguchi; Kazumasa Yamamoto; Takanobu Nishiura; Masato Nakayama; Yuki Denda; Masakiyo Fujimoto; Shigeki Matsuda; et al. (AVSP, 2010)

Speaker identification by combining MFCC and phase information in noisy environments. - Longbiao Wang; Kazue Minami; Kazumasa Yamamoto; Seiichi Nakagawa (ICASSP, 2010)

Improving the readability of class lecture ASR results using a confusion network. - Yasuhisa Fujii; Kazumasa Yamamoto; Seiichi Nakagawa (INTERSPEECH, 2010)

Speech recognition using long-term phase information. - Kazumasa Yamamoto; Eiichi Sueyoshi; Seiichi Nakagawa (INTERSPEECH, 2010)

Evaluation of Privacy Protection Techniques for Speech Signals. - Kazumasa Yamamoto; Seiichi Nakagawa (IPMU (2), 2010)

Out-of-vocabulary term detection by n-gram array with distance from continuous syllable recognition results. - Keisuke Iwami; Yasuhisa Fujii; Kazumasa Yamamoto; Seiichi Nakagawa (SLT, 2010)

Distant Speech Recognition Using a Microphone Array Network. - Alberto Yoshihiro Nakano; Seiichi Nakagawa; Kazumasa Yamamoto (IEICE Trans. Inf. Syst., 2010)

Speaker Recognition by Combining MFCC and Phase Information in Noisy Conditions. - Longbiao Wang; Kazue Minami; Kazumasa Yamamoto; Seiichi Nakagawa (IEICE Trans. Inf. Syst., 2010)

Automatic speech recognition using Hidden Conditional Neural Fields. - Yasuhisa Fujii; Kazumasa Yamamoto; Seiichi Nakagawa (ICASSP, 2011)

Efficient out-of-vocabulary term detection by n-gram array indices with distance from a syllable lattice. - Keisuke Iwami; Yasuhisa Fujii; Kazumasa Yamamoto; Seiichi Nakagawa (ICASSP, 2011)

Hidden Boosted MMI and Hierarchical State Posterior Feature for Automatic Speech Recognition Based on Hidden Conditional Neural Fields. - Yasuhisa Fujii; Kazumasa Yamamoto; Seiichi Nakagawa (INTERSPEECH, 2011)

Speech Recognition in Mixed Sound of Speech and Music Based on Vector Quantization and Non-Negative Matrix Factorization. - Shoichi Nakano; Kazumasa Yamamoto; Seiichi Nakagawa (INTERSPEECH, 2011)

Soft-clustering technique for training data in Age-and gender-independent speech recognition. - Daisuke Enami; Faqiang Zhu; Kazumasa Yamamoto; Seiichi Nakagawa (APSIPA, 2012)

Microphone array processing for distant speech recognition: Towards real-world deployment. - Ken'ichi Kumatani; Takayuki Arakawa; Kazumasa Yamamoto; John W. McDonough; Bhiksha Raj; Rita Singh; Ivan Tashev (APSIPA, 2012)

Fast NMF based approach and improved VQ based approach for speech recognition from mixed sound. - Shoichi Nakano; Kazumasa Yamamoto; Seiichi Nakagawa (APSIPA, 2012)

Development of large vocabulary continuous speech recognition system for Mongolian language. - Seiichi Nakagawa; Erdenebat Turmunkh; Hiroshi Kibishi; Kengo Ohta; Yasuhisa Fujii; Masatoshi Tsuchiya; Kazumasa Yamamoto (SLTU, 2012)

A low power many-core SoC with two 32-core clusters connected by tree based NoC for multimedia applications. - Hui Xu; Jun Tanabe; Hiroyuki Usui; Soichiro Hosoda; Toru Sano; Kazumasa Yamamoto; Takeshi Kodaka; Nobuhiro Nonogaki; Nau Ozaki; Takashi Miyamori (VLSIC, 2012)

Improving the Readability of ASR Results for Lectures Using Multiple Hypotheses and Sentence-Level Knowledge. - Yasuhisa Fujii; Kazumasa Yamamoto; Seiichi Nakagawa (IEICE Trans. Inf. Syst., 2012)

Hidden Conditional Neural Fields for Continuous Phoneme Speech Recognition. - Yasuhisa Fujii; Kazumasa Yamamoto; Seiichi Nakagawa (IEICE Trans. Inf. Syst., 2012)

Fast NMF based approach and VQ based approach using MFCC distance measure for speech recognition from mixed sound. - Shoichi Nakano; Kazumasa Yamamoto; Seiichi Nakagawa (APSIPA, 2013)

Single channel dereverberation method in log-melspectral domain using limited stereo data for distant speaker identification. - Aditya Arie Nugraha; Kazumasa Yamamoto; Seiichi Nakagawa (APSIPA, 2013)

Speaker tracking with spherical microphone arrays. - John W. McDonough; Ken'ichi Kumatani; Takayuki Arakawa; Kazumasa Yamamoto; Bhiksha Raj (ICASSP, 2013)

Development and evaluation of spoken dialog systems with one or two agents. - Yuki Todo; Ryota Nishimura; Kazumasa Yamamoto; Seiichi Nakagawa (INTERSPEECH, 2013)

Development and Evaluation of Spoken Dialog Systems with One or Two Agents through Two Domains. - Yuki Todo; Ryota Nishimura; Kazumasa Yamamoto; Seiichi Nakagawa (TSD, 2013)

A robust/fast spoken term detection method based on a syllable n-gram index with a distance metric. - Seiichi Nakagawa; Keisuke Iwami; Yasuhisa Fujii; Kazumasa Yamamoto (Speech Commun., 2013)

Speech recognition based on Itakura-Saito divergence and dynamics/sparseness constraints from mixed sound of speech and music by non-negative matrix factorization. - Naoaki Hashimoto; Shoichi Nakano; Kazumasa Yamamoto; Seiichi Nakagawa (INTERSPEECH, 2014)

Sopoken Term Detection Based on a Syllable N-gram Index at the NTCIR-11 SpokenQuery&Doc Task. - Nagisa Sakamoto; Kazumasa Yamamoto; Seiichi Nakagawa (NTCIR, 2014)

Single-channel dereverberation by feature mapping using cascade neural networks for robust distant speaker identification and speech recognition. - Aditya Arie Nugraha; Kazumasa Yamamoto; Seiichi Nakagawa (EURASIP J. Audio Speech Music. Process., 2014)

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 (IEICE Trans. Electron., 2014)

Speech recognition for mixed speech and music by NMF using various cost functions and noise adaptive training methods. - Naoaki Hashimoto; Kazumasa Yamamoto; Seiichi Nakagawa (APSIPA, 2015)

Deep neural network based acoustic model using speaker-class information for short time utterance. - Hiroshi Seki; Kazumasa Yamamoto; Seiichi Nakagawa (APSIPA, 2015)

Combination of syllable based N-gram search and word search for spoken term detection through spoken queries and IV/OOV classification. - Nagisa Sakamoto; Kazumasa Yamamoto; Seiichi Nakagawa (ASRU, 2015)

Robust speech recognition using DNN-HMM acoustic model combining noise-aware training with spectral subtraction. - Akihiro Abe; Kazumasa Yamamoto; Seiichi Nakagawa (INTERSPEECH, 2015)

Domain adaptation of a speech translation system for lectures by utilizing frequently appearing parallel phrases in-domain. - Norioki Goto; Kazumasa Yamamoto; Seiichi Nakagawa (APSIPA, 2016)

Investigation of glottal features and annotation procedures for speech emotion recognition. - Masaaki Takebe; Kazumasa Yamamoto; Seiichi Nakagawa (APSIPA, 2016)

Speech analysis of sung-speech and lyric recognition in monophonic singing. - Dairoku Kawai; Kazumasa Yamamoto; Seiichi Nakagawa (ICASSP, 2016)

Detection of overlapping acoustic events based on NMF with shared basis vectors. - Kazumasa Yamamoto; Chikara Ishikawa; Koya Sahashi; Seiichi Nakagawa (GCCE, 2017)

Lyric recognition in monophonic singing using pitch-dependent DNN. - Dairoku Kawai; Kazumasa Yamamoto; Seiichi Nakagawa (ICASSP, 2017)

A deep neural network integrated with filterbank learning for speech recognition. - Hiroshi Seki; Kazumasa Yamamoto; Seiichi Nakagawa (ICASSP, 2017)

Automatic Explanation Spot Estimation Method Targeted at Text and Figures in Lecture Slides. - Shoko Tsujimura; Kazumasa Yamamoto; Seiichi Nakagawa (INTERSPEECH, 2017)

Rapid Speaker Adaptation of Neural Network Based Filterbank Layer for Automatic Speech Recognition. - Hiroshi Seki; Kazumasa Yamamoto; Tomoyosi Akiba; Seiichi Nakagawa (SLT, 2018)

Evaluation of Real Robot Agent Interface for Spoken Dialogue System. - Kazumasa Yamamoto; Akira Tamagawa; Seiichi Nakagawa (GCCE, 2019)

Learning Position Evaluation Functions Used in Monte Carlo Softmax Search. - Harukazu Igarashi; Yuichi Morioka; Kazumasa Yamamoto (CoRR, 2019)

Discriminative Learning of Filterbank Layer within Deep Neural Network Based Speech Recognition for Speaker Adaptation. - Hiroshi Seki; Kazumasa Yamamoto; Tomoyosi Akiba; Seiichi Nakagawa (IEICE Trans. Inf. Syst., 2019)

Effectiveness of Fine Linear Frequency Spectral Feature for Acoustic Event Detection. - Kazumasa Yamamoto; Ryo Yamamoto; Seiichi Nakagawa (GCCE, 2020)

Improvement of Elderly Speech Recognition Using Gammatone Filterbank Adaptation. - Kazumasa Yamamoto; Akinori Ishiki; Seiichi Nakagawa (GCCE, 2021)

30.4 A 1Tb 3b/Cell 3D-Flash Memory in a 170+ Word-Line-Layer Technology. - Tsutomu Higuchi; Takuyo Kodama; Koji Kato; Ryo Fukuda; Naoya Tokiwa; Mitsuhiro Abe; Teruo Takagiwa; Yuki Shimizu; Junji Musha; Katsuaki Sakurai; Jumpei Sato; Tetsuaki Utsumi; et al. (ISSCC, 2021)

Summarization of Spoken Lectures Based on MMR Method and Important/Unimportant Sentence Classification Using BERT. - Kento Masuda; Yui Hayakawa; Kazumasa Yamamoto; Seiichi Nakagawa (GCCE, 2022)

Elderly Conversational Speech Corpus with Cognitive Impairment Test and Pilot Dementia Detection Experiment Using Acoustic Characteristics of Speech in Japanese Dialects. - Meiko Fukuda; Ryota Nishimura; Maina Umezawa; Kazumasa Yamamoto; Yurie Iribe; Norihide Kitaoka (LREC, 2022)

A Corpus-Based Analysis Of Age-Related Changes In The Acoustic Features Of Elderly To Super Elderly Speech. - Meiko Fukuda; Masakazu Sugiyama; Ryota Nishimura; Yurie Iribe; Kazumasa Yamamoto; Norihide Kitaoka (O-COCOSDA 2022, 2022)

A Study of Speech Recognition, Speech Translation, and Speech Summarization of TED English Lectures. - Kazumasa Yamamoto; Haruhiko Banno; Haruki Sakurai; Toichiro Adachi; Seiichi Nakagawa (GCCE, 2023)

A new speech corpus of super-elderly Japanese for acoustic modeling. - Meiko Fukuda; Ryota Nishimura; Hiromitsu Nishizaki; Koharu Horii; Yurie Iribe; Kazumasa Yamamoto; Norihide Kitaoka (Comput. Speech Lang., 2023)

Data Augmentation Methods and Influence of Speech Recognition Performance for TED Talk's English to Japanese Speech Translation. - Kento Masuda; Kazumasa Yamamoto; Seiichi Nakagawa (APSIPA, 2024)

Elderly Speech Recognition Using Whisper and Speaker Adaptation. - Kazumasa Yamamoto; Kosei Fukuhara; Seiichi Nakagawa (GCCE, 2024)