Hitoshi Yamamoto

According to our database, Hitoshi Yamamoto authored at least 49 papers between 1986 and 2023.

Collaborative distances:

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

2023

The evolution of cooperation and diversity by integrated indirect reciprocity.

Tatsuya Sasaki, Satoshi Uchida, Isamu Okada, Hitoshi Yamamoto

CoRR, 2023

2022

I4U System Description for NIST SRE'20 CTS Challenge.

Kong Aik Lee, Tomi Kinnunen, Daniele Colibro, Claudio Vair, Andreas Nautsch, Hanwu Sun, Liang He, Tianyu Liang, Qiongqiong Wang, Mickael Rouvier, Pierre-Michel Bousquet, Rohan Kumar Das, Ignacio Viñals Bailo, Meng Liu, Héctor Deldago, Xuechen Liu, Md. Sahidullah, Sandro Cumani, Boning Zhang, Koji Okabe, Hitoshi Yamamoto, Ruijie Tao, Haizhou Li, Alfonso Ortega Giménez, Longbiao Wang, Luis Buera

CoRR, 2022

2021

The International Linear Collider Project - Its Physics and Status.

Hitoshi Yamamoto

Symmetry, 2021

Simulation of Intragroup Alignment Using a New Model of Opinion Dynamics.

Nozomi Okano, Hitoshi Yamamoto, Masaru Nishikawa, Akira Ishii

Proceedings of the Intelligent Systems and Applications, 2021

Task-aware Warping Factors in Mask-based Speech Enhancement.

Qiongqiong Wang, Kong Aik Lee, Takafumi Koshinaka, Koji Okabe, Hitoshi Yamamoto

Proceedings of the 29th European Signal Processing Conference, 2021

2020

A belief in rewards accelerates cooperation on consumer-generated media.

Fujio Toriumi, Hitoshi Yamamoto, Isamu Okada

J. Comput. Soc. Sci., 2020

Hybrid Assessment Scheme Based on the Stern- Judging Rule for Maintaining Cooperation under Indirect Reciprocity.

Isamu Okada, Hitoshi Yamamoto, Satoshi Uchida

Games, 2020

NEC-TT System for Mixed-Bandwidth and Multi-Domain Speaker Recognition.

Kong Aik Lee, Hitoshi Yamamoto, Koji Okabe, Qiongqiong Wang, Ling Guo, Takafumi Koshinaka, Jiacen Zhang, Koichi Shinoda

Comput. Speech Lang., 2020

NEC-TT Speaker Verification System for SRE'19 CTS Challenge.

Kong Aik Lee, Koji Okabe, Hitoshi Yamamoto, Qiongqiong Wang, Ling Guo, Takafumi Koshinaka, Jiacen Zhang, Keisuke Ishikawa, Koichi Shinoda

Proceedings of the Interspeech 2020, 2020

Development and Basic Analysis of Novel Flexible Linear Motor.

Hiroshi Asai, Tomoyuki Shimono, Tomoe Deguchi, Yasuhisa Fujii, Hitoshi Yamamoto, Kouhei Ohnishi

Proceedings of the 16th IEEE International Workshop on Advanced Motion Control, 2020

2019

Evolution of Cooperation with Peer Punishment under Prospect Theory.

Satoshi Uchida, Hitoshi Yamamoto, Isamu Okada, Tatsuya Sasaki

Games, 2019

I4U Submission to NIST SRE 2018: Leveraging from a Decade of Shared Experiences.

Kong Aik Lee, Ville Hautamäki, Tomi Kinnunen, Hitoshi Yamamoto, Koji Okabe, Ville Vestman, Jing Huang, Guohong Ding, Hanwu Sun, Anthony Larcher, Rohan Kumar Das, Haizhou Li, Mickael Rouvier, Pierre-Michel Bousquet, Wei Rao, Qing Wang, Chunlei Zhang, Fahimeh Bahmaninezhad, Héctor Delgado, Jose Patino, Qiongqiong Wang, Ling Guo, Takafumi Koshinaka, Jiacen Zhang, Koichi Shinoda, Trung Ngo Trong, Md. Sahidullah, Fan Lu, Yun Tang, Ming Tu, Kah Kuan Teh, Tran Huy Dat, Kuruvachan K. George, Ivan Kukanov, Florent Desnous, Jichen Yang, Emre Yilmaz, Longting Xu, Jean-François Bonastre, Chenglin Xu, Zhi Hao Lim, Eng Siong Chng, Shivesh Ranjan, John H. L. Hansen, Massimiliano Todisco, Nicholas W. D. Evans

CoRR, 2019

Rewards Visualization System Promotes Information Provision.

Fujio Toriumi, Hitoshi Yamamoto, Isamu Okada

Proceedings of the Advances in Artificial Intelligence, 2019

Speaker Augmentation and Bandwidth Extension for Deep Speaker Embedding.

Hitoshi Yamamoto, Kong Aik Lee, Koji Okabe, Takafumi Koshinaka

Proceedings of the Interspeech 2019, 2019

The NEC-TT 2018 Speaker Verification System.

Kong Aik Lee, Hitoshi Yamamoto, Koji Okabe, Qiongqiong Wang, Ling Guo, Takafumi Koshinaka, Jiacen Zhang, Koichi Shinoda

Proceedings of the Interspeech 2019, 2019

I4U Submission to NIST SRE 2018: Leveraging from a Decade of Shared Experiences.

Kong Aik Lee, Ville Hautamäki, Tomi H. Kinnunen, Hitoshi Yamamoto, Koji Okabe, Ville Vestman, Jing Huang, Guohong Ding, Hanwu Sun, Anthony Larcher, Rohan Kumar Das, Haizhou Li, Mickael Rouvier, Pierre-Michel Bousquet, Wei Rao, Qing Wang, Chunlei Zhang, Fahimeh Bahmaninezhad, Héctor Delgado, Massimiliano Todisco

Proceedings of the Interspeech 2019, 2019

2018

Attention Mechanism in Speaker Recognition: What Does it Learn in Deep Speaker Embedding?

Qiongqiong Wang, Koji Okabe, Kong Aik Lee, Hitoshi Yamamoto, Takafumi Koshinaka

Proceedings of the 2018 IEEE Spoken Language Technology Workshop, 2018

2017

The Evolution of Reputation-Based Cooperation in Regular Networks.

Tatsuya Sasaki, Hitoshi Yamamoto, Isamu Okada, Satoshi Uchida

Games, 2017

A norm knockout method on indirect reciprocity to reveal indispensable norms.

Hitoshi Yamamoto, Isamu Okada, Satoshi Uchida, Tatsuya Sasaki

CoRR, 2017

i-Vector Transformation Using a Novel Discriminative Denoising Autoencoder for Noise-Robust Speaker Recognition.

Shivangi Mahto, Hitoshi Yamamoto, Takafumi Koshinaka

Proceedings of the Interspeech 2017, 2017

Robust i-vector extraction tightly coupled with voice activity detection using deep neural networks.

Hitoshi Yamamoto, Koji Okabe, Takafumi Koshinaka

Proceedings of the 2017 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2017

2016

Exploring an Effective Incentive System on a Groupware.

Fujio Toriumi, Hitoshi Yamamoto, Isamu Okada

J. Artif. Soc. Soc. Simul., 2016

Domain adaptation using maximum likelihood linear transformation for PLDA-based speaker verification.

Qiongqiong Wang, Hitoshi Yamamoto, Takafumi Koshinaka

Proceedings of the 2016 IEEE International Conference on Acoustics, 2016

2015

The Effect of Incentives and Meta-incentives on the Evolution of Cooperation.

Isamu Okada, Hitoshi Yamamoto, Fujio Toriumi, Tatsuya Sasaki

PLoS Comput. Biol., 2015

Denoising autoencoder-based speaker feature restoration for utterances of short duration.

Hitoshi Yamamoto, Takafumi Koshinaka

Proceedings of the INTERSPEECH 2015, 2015

2014

Analysis of a Public Good Game Permitted New Entries: a Role of Defectors to Maintain Cooperation.

Hitoshi Yamamoto, Isamu Okada, Yuki Ogawa

J. Adv. Comput. Intell. Intell. Informatics, 2014

Influence of Payoff in Meta-Rewards Game.

Fujio Toriumi, Hitoshi Yamamoto, Isamu Okada

J. Adv. Comput. Intell. Intell. Informatics, 2014

Efficient multi-lingual unsupervised acoustic model training under mismatch conditions.

Masahiro Saiko, Hitoshi Yamamoto, Ryosuke Isotani, Chiori Hori

Proceedings of the 2014 IEEE Spoken Language Technology Workshop, 2014

2013

Mathematical description and analysis of adaptive risk choice behavior.

Isamu Okada, Hitoshi Yamamoto

ACM Trans. Intell. Syst. Technol., 2013

A lecture transcription system combining neural network acoustic and language models.

Peter Bell, Hitoshi Yamamoto, Pawel Swietojanski, Youzheng Wu, Fergus McInnes, Chiori Hori, Steve Renals

Proceedings of the INTERSPEECH 2013, 2013

Effects of Controllable Facilitators on Social Media: Simulation Analysis Using Generalized Metanorms Games.

Fujio Toriumi, Hitoshi Yamamoto, Isamu Okada

Proceedings of the 2013 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology, 2013

Adaptive Risk Choice Behavior Using MAS.

Isamu Okada, Hitoshi Yamamoto

Proceedings of the 2013 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology, 2013

Association between Selective Exposure and Attitude on Twitter.

Yuki Ogawa, Kakuko Miyata, Hitoshi Yamamoto, Ken'ichi Ikeda

Proceedings of the 2013 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology, 2013

2012

The NICT ASR system for IWSLT2012.

Hitoshi Yamamoto, Youzheng Wu, Chien-Lin Huang, Xugang Lu, Paul R. Dixon, Shigeki Matsuda, Chiori Hori, Hideki Kashioka

Proceedings of the 2012 International Workshop on Spoken Language Translation, 2012

Factored recurrent neural network language model in TED lecture transcription.

Youzheng Wu, Hitoshi Yamamoto, Xugang Lu, Shigeki Matsuda, Chiori Hori, Hideki Kashioka

Proceedings of the 2012 International Workshop on Spoken Language Translation, 2012

Tied-State Mixture Language Model for WFST-based Speech Recognition.

Hitoshi Yamamoto, Paul R. Dixon, Shigeki Matsuda, Chiori Hori, Hideki Kashioka

Proceedings of the INTERSPEECH 2012, 2012

Why Do People Use Social Media? Agent-Based Simulation and Population Dynamics Analysis of the Evolution of Cooperation in Social Media.

Fujio Toriumi, Hitoshi Yamamoto, Isamu Okada

Proceedings of the 2012 IEEE/WIC/ACM International Conferences on Intelligent Agent Technology, 2012

Factored Language Model based on Recurrent Neural Network.

Youzheng Wu, Xugang Lu, Hitoshi Yamamoto, Shigeki Matsuda, Chiori Hori, Hideki Kashioka

Proceedings of the COLING 2012, 2012

Effect of defectors for cooperation: how strictly should defectors be eliminated from the newcomers?

Hitoshi Yamamoto, Isamu Okada, Yuki Ogawa

Proceedings of the International Conference on Autonomous Agents and Multiagent Systems, 2012

2011

Effects of Information Diffusion in Online Word-of-Mouth Communication Among Consumers.

Isamu Okada, Hitoshi Yamamoto

J. Adv. Comput. Intell. Intell. Informatics, 2011

2010

Dynamic language model adaptation using keyword category classification.

Hitoshi Yamamoto, Ken Hanazawa, Kiyokazu Miki, Koichi Shinoda

Proceedings of the INTERSPEECH 2010, 2010

2009

SiN-based micro cantilever actuators using NdFeB/Ta permanent magnetic thin film.

Sen Yao, Shunji Goto, Junpei Sakurai, Tadahiko Shinshi, Minoru Uehara, Hitoshi Yamamoto

Proceedings of the 4th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, 2009

2008

Development of Recommender Systems Using User Preference Tendencies: An Algorithm for Diversifying Recommendation.

Yuki Ogawa, Hirohiko Suwa, Hitoshi Yamamoto, Isamu Okada, Toshizumi Ohta

Proceedings of the Towards Sustainable Society on Ubiquitous Networks, 2008

2006

Vulnerability of Cooperation on Scale-Free Networks.

Yoshifumi Ishida, Hitoshi Yamamoto, Isamu Okada, Toshizumi Ohta

Proceedings of the Advancing Social Simulation: The First World Congressi [Post-Conference Proceedings of the World Congress on Social Simulation, 2006

2004

Modeling Reputation Management System on Online C2C Market.

Hitoshi Yamamoto, Kazunari Ishida, Toshizumi Ohta

Comput. Math. Organ. Theory, 2004

Temptation and Contribution in C2C Transactions: Implications for Designing Reputation Management Systems.

Hitoshi Yamamoto, Kazunari Ishida, Toshizumi Ohta

Proceedings of the Trusting Agents for Trusting Electronic Societies, 2004

2001

Relation Formation by Medium Properties: A Multiagent Simulation.

Hitoshi Yamamoto, Isamu Okada, Makoto Jgarashi, Toshizumi Ohta

Proceedings of the Fifth Pacific Asia Conference on Information Systems, 2001

1986

Reliability of the OS-280M Optical Submarine Repeater.

Kohichi Tatekura, Hitoshi Yamamoto, Hiroharu Wakabayashi, Yasuhiko Niiro

IEEE J. Sel. Areas Commun., 1986

The international long-haul optical-fiber submarine cable system in Japan.

Yasuhiko Niiro, Hitoshi Yamamoto

IEEE Commun. Mag., 1986