Kazumasa Yamamoto

According to our database, Kazumasa Yamamoto authored at least 74 papers between 1995 and 2023.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

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

A Study of Speech Recognition, Speech Translation, and Speech Summarization of TED English Lectures.

Kazumasa Yamamoto, Haruhiko Banno, Haruki Sakurai, Toichiro Adachi, Seiichi Nakagawa

Proceedings of the 12th IEEE Global Conference on Consumer Electronics, 2023

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

Proceedings of the 25th Conference of the Oriental COCOSDA International Committee for the Co-ordination and Standardisation of Speech Databases and Assessment Techniques, 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

Proceedings of the Thirteenth Language Resources and Evaluation Conference, 2022

Summarization of Spoken Lectures Based on MMR Method and Important/Unimportant Sentence Classification Using BERT.

Kento Masuda, Yui Hayakawa, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the 11th IEEE Global Conference on Consumer Electronics, 2022

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, Kazuhide Yoneya, Yasuhiro Suematsu, Toshifumi Hashimoto, Takeshi Hioka, Kosuke Yanagidaira, Masatsugu Kojima, Junya Matsuno, Kei Shiraishi, Kensuke Yamamoto, Shintaro Hayashi, Tomoharu Hashiguchi, Kazuko Inuzuka, Akio Sugahara, Mitsuaki Honma, Keiji Tsunoda, Kazumasa Yamamoto, Takahiro Sugimoto, Tomofumi Fujimura, Mizuki Kaneko, Hiroki Date, Osamu Kobayashi, Takatoshi Minamoto, Ryoichi Tachibana, Itaru Yamaguchi, Juan Lee, Venky Ramachandra, Srinivas Rajendra, Tianyu Tang, Siddhesh Darne, Jiwang Lee, Jason Li, Toru Miwa, Ryuji Yamashita, Hiroshi Sugawara, Naoki Ookuma, Masahiro Kano, Hiroyuki Mizukoshi, Yuki Kuniyoshi, Mitsuyuki Watanabe, Kei Akiyama, Hirotoshi Mori, Akira Arimizu, Yoshito Katano, Masakazu Ehama, Hiroshi Maejima, Koji Hosono, Masahiro Yoshihara

Proceedings of the IEEE International Solid-State Circuits Conference, 2021

Improvement of Elderly Speech Recognition Using Gammatone Filterbank Adaptation.

Kazumasa Yamamoto, Akinori Ishiki, Seiichi Nakagawa

Proceedings of the 10th IEEE Global Conference on Consumer Electronics, 2021

2020

Effectiveness of Fine Linear Frequency Spectral Feature for Acoustic Event Detection.

Kazumasa Yamamoto, Ryo Yamamoto, Seiichi Nakagawa

Proceedings of the 9th IEEE Global Conference on Consumer Electronics, 2020

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

Learning Position Evaluation Functions Used in Monte Carlo Softmax Search.

Harukazu Igarashi, Yuichi Morioka, Kazumasa Yamamoto

CoRR, 2019

Evaluation of Real Robot Agent Interface for Spoken Dialogue System.

Kazumasa Yamamoto, Akira Tamagawa, Seiichi Nakagawa

Proceedings of the IEEE 8th Global Conference on Consumer Electronics, 2019

2018

Rapid Speaker Adaptation of Neural Network Based Filterbank Layer for Automatic Speech Recognition.

Hiroshi Seki, Kazumasa Yamamoto, Tomoyosi Akiba, Seiichi Nakagawa

Proceedings of the 2018 IEEE Spoken Language Technology Workshop, 2018

2017

Automatic Explanation Spot Estimation Method Targeted at Text and Figures in Lecture Slides.

Shoko Tsujimura, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the Interspeech 2017, 2017

A deep neural network integrated with filterbank learning for speech recognition.

Hiroshi Seki, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the 2017 IEEE International Conference on Acoustics, 2017

Lyric recognition in monophonic singing using pitch-dependent DNN.

Dairoku Kawai, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the 2017 IEEE International Conference on Acoustics, 2017

Detection of overlapping acoustic events based on NMF with shared basis vectors.

Kazumasa Yamamoto, Chikara Ishikawa, Koya Sahashi, Seiichi Nakagawa

Proceedings of the IEEE 6th Global Conference on Consumer Electronics, 2017

2016

Speech analysis of sung-speech and lyric recognition in monophonic singing.

Dairoku Kawai, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the 2016 IEEE International Conference on Acoustics, 2016

Investigation of glottal features and annotation procedures for speech emotion recognition.

Masaaki Takebe, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2016

Domain adaptation of a speech translation system for lectures by utilizing frequently appearing parallel phrases in-domain.

Norioki Goto, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2016

2015

Robust speech recognition using DNN-HMM acoustic model combining noise-aware training with spectral subtraction.

Akihiro Abe, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the INTERSPEECH 2015, 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

Proceedings of the 2015 IEEE Workshop on Automatic Speech Recognition and Understanding, 2015

Deep neural network based acoustic model using speaker-class information for short time utterance.

Hiroshi Seki, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2015

Speech recognition for mixed speech and music by NMF using various cost functions and noise adaptive training methods.

Naoaki Hashimoto, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2015

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

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

Sopoken Term Detection Based on a Syllable N-gram Index at the NTCIR-11 SpokenQuery&Doc Task.

Nagisa Sakamoto, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the 11th NTCIR Conference on Evaluation of Information Access Technologies, 2014

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

Proceedings of the INTERSPEECH 2014, 2014

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

Development and Evaluation of Spoken Dialog Systems with One or Two Agents through Two Domains.

Yuki Todo, Ryota Nishimura, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the Text, Speech, and Dialogue - 16th International Conference, 2013

Development and evaluation of spoken dialog systems with one or two agents.

Yuki Todo, Ryota Nishimura, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the INTERSPEECH 2013, 2013

Speaker tracking with spherical microphone arrays.

John W. McDonough, Ken'ichi Kumatani, Takayuki Arakawa, Kazumasa Yamamoto, Bhiksha Raj

Proceedings of the IEEE International Conference on Acoustics, 2013

Single channel dereverberation method in log-melspectral domain using limited stereo data for distant speaker identification.

Aditya Arie Nugraha, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2013

Fast NMF based approach and VQ based approach using MFCC distance measure for speech recognition from mixed sound.

Shoichi Nakano, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2013

2012

Hidden Conditional Neural Fields for Continuous Phoneme Speech Recognition.

Yasuhisa Fujii, Kazumasa Yamamoto, Seiichi Nakagawa

IEICE Trans. Inf. Syst., 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

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

Proceedings of the Symposium on VLSI Circuits, 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

Proceedings of the Third Workshop on Spoken Language Technologies for Under-resourced Languages, 2012

Fast NMF based approach and improved VQ based approach for speech recognition from mixed sound.

Shoichi Nakano, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 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

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2012

Soft-clustering technique for training data in Age-and gender-independent speech recognition.

Daisuke Enami, Faqiang Zhu, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2012

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

Proceedings of the INTERSPEECH 2011, 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

Proceedings of the INTERSPEECH 2011, 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

Proceedings of the IEEE International Conference on Acoustics, 2011

Automatic speech recognition using Hidden Conditional Neural Fields.

Yasuhisa Fujii, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the IEEE International Conference on Acoustics, 2011

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

Distant Speech Recognition Using a Microphone Array Network.

Alberto Yoshihiro Nakano, Seiichi Nakagawa, Kazumasa Yamamoto

IEICE Trans. Inf. Syst., 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

Proceedings of the 2010 IEEE Spoken Language Technology Workshop, 2010

Evaluation of Privacy Protection Techniques for Speech Signals.

Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the Information Processing and Management of Uncertainty in Knowledge-Based Systems. Applications, 2010

Speech recognition using long-term phase information.

Kazumasa Yamamoto, Eiichi Sueyoshi, Seiichi Nakagawa

Proceedings of the INTERSPEECH 2010, 2010

Improving the readability of class lecture ASR results using a confusion network.

Yasuhisa Fujii, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the INTERSPEECH 2010, 2010

Speaker identification by combining MFCC and phase information in noisy environments.

Longbiao Wang, Kazue Minami, Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the IEEE International Conference on Acoustics, 2010

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, Tetsuji Ogawa, Shingo Kuroiwa, Kazuya Takeda, Satoshi Nakamura

Proceedings of the Auditory-Visual Speech Processing, 2010

2009

Estimating the position and orientation of an acoustic source with a microphone array network.

Alberto Yoshihiro Nakano, Seiichi Nakagawa, Kazumasa Yamamoto

Proceedings of the INTERSPEECH 2009, 2009

Privacy Protection for Speech Information.

Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the Fifth International Conference on Information Assurance and Security, 2009

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, Kazuya Takeda, Satoshi Nakamura

Proceedings of the International Conference on Language Resources and Evaluation, 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, Shigeki Matsuda, Shingo Kuroiwa, Kazuya Takeda, Satoshi Nakamura

Proceedings of the INTERSPEECH 2008, 2008

Speech recognition performance of CJLC: corpus of Japanese lecture contents.

Satoru Kogure, Hiromitsu Nishizaki, Masatoshi Tsuchiya, Kazumasa Yamamoto, Shingo Togashi, Seiichi Nakagawa

Proceedings of the INTERSPEECH 2008, 2008

Class lecture summarization taking into account consecutiveness of important sentences.

Yasuhisa Fujii, Kazumasa Yamamoto, Norihide Kitaoka, Seiichi Nakagawa

Proceedings of the INTERSPEECH 2008, 2008

2007

Mel-Wiener Filter for Mel-LPC Based Speech Recognition.

Md. Babul Islam, Kazumasa Yamamoto, Hiroshi Matsumoto

IEICE Trans. Inf. Syst., 2007

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, Satoshi Tamura, Shingo Kuroiwa, Kazuya Takeda, Satoshi Nakamura

Proceedings of the IEEE Workshop on Automatic Speech Recognition & Understanding, 2007

2006

An improved mel-wiener filter for mel-LPC based speech recognition.

Md. Babul Islam, Hiroshi Matsumoto, Kazumasa Yamamoto

Proceedings of the INTERSPEECH 2006, 2006

2005

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

IEICE Trans. Inf. Syst., 2005

CENSREC-3: Data Collection for In-Car Speech Recognition and Its Common Evaluation Framework.

Masakiyo Fujimoto, Satoshi Nakamura, Toshiki Endo, Kazuya Takeda, Chiyomi Miyajima, Shingo Kuroiwa, Takeshi Yamada, Norihide Kitaoka, Kazumasa Yamamoto, Mitsunori Mizumachi, Takanobu Nishiura, Akira Sasou

Proceedings of the 21st International Conference on Data Engineering Workshops, 2005

2003

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

Proceedings of the 8th European Conference on Speech Communication and Technology, EUROSPEECH 2003, 2003

2002

Speech recognition under noisy environments using segmental unit input HMM.

Kazumasa Yamamoto, Seiichi Nakagawa

Syst. Comput. Jpn., 2002

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

2001

Evaluation of a generalized dynamic cepstrum in distant speech recognition.

Hiroshi Matsumoto, Akihiko Shimizu, Kazumasa Yamamoto

Proceedings of the EUROSPEECH 2001 Scandinavia, 2001

2000

Relationship among speaking style, inter-phoneme's distance and speech recognition performance.

Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the Sixth International Conference on Spoken Language Processing, 2000

Forward masking on a generalized logarithmic scale for robust speech recognition.

Yoshihiro Ito, Hiroshi Matsumoto, Kazumasa Yamamoto

Proceedings of the Sixth International Conference on Spoken Language Processing, 2000

1999

HMM composition of segmental unit input HMM for noisy speech recognition.

Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the Sixth European Conference on Speech Communication and Technology, 1999

1998

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

Proceedings of the 5th International Conference on Spoken Language Processing, Incorporating The 7th Australian International Speech Science and Technology Conference, Sydney Convention Centre, Sydney, Australia, 30th November, 1998

1997

Speech recognition using hidden Markov models based on segmental statistics.

Seiichi Nakagawa, Kazumasa Yamamoto

Syst. Comput. Jpn., 1997

1996

Evaluation of segmental unit input HMM.

Seiichi Nakagawa, Kazumasa Yamamoto

Proceedings of the 1996 IEEE International Conference on Acoustics, 1996

1995

Comparative evaluation of segmental unit input HMM and conditional density HMM.

Kazumasa Yamamoto, Seiichi Nakagawa

Proceedings of the Fourth European Conference on Speech Communication and Technology, 1995