Hitoshi Yamamoto

Principal Researcher, NEC

Joined

March 2026

Names

Hitoshi Yamamoto (Preferred)

Emails

****@nec.com (Confirmed)

Personal Links

Google Scholar

DBLP

Semantic Scholar

Career & Education History

Principal Researcher

NEC (nec.com)

2020 – Present

Advisors, Relations & Conflicts

No relations added

Expertise

Speaker Recognition

2015 – Present

Speech Recognition

2005 – Present

Publications

Simultaneous Masked and Unmasked Decoding with Speculative Decoding Masking for Fast ASR without Accuracy Loss
Koji Okabe, Hitoshi Yamamoto
- INTERSPEECH 2025
- Readers: Everyone
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 et al. (6 additional authors not shown)
- Published: 01 Jan 2022, Last Modified: 12 May 2023
- CoRR 2022
- Readers: Everyone
Task-aware Warping Factors in Mask-based Speech Enhancement
Qiongqiong Wang, Kong Aik Lee, Takafumi Koshinaka, Koji Okabe, Hitoshi Yamamoto
- Published: 01 Jan 2021, Last Modified: 12 May 2023
- CoRR 2021
- Readers: Everyone
Task-aware Warping Factors in Mask-based Speech Enhancement
Qiongqiong Wang, Kong Aik Lee, Takafumi Koshinaka, Koji Okabe, Hitoshi Yamamoto
- Published: 01 Jan 2021, Last Modified: 12 May 2023
- EUSIPCO 2021
- Readers: Everyone
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
- Published: 01 Jan 2020, Last Modified: 12 May 2023
- Comput. Speech Lang. 2020
- Readers: Everyone
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
- Published: 01 Jan 2020, Last Modified: 12 May 2023
- INTERSPEECH 2020
- Readers: Everyone
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 et al. (26 additional authors not shown)
- 2019 (modified: 09 Mar 2026)
- CoRR 2019
- Readers: Everyone
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
- 2019 (modified: 28 Sept 2021)
- INTERSPEECH 2019
- Readers: Everyone
The NEC-TT 2018 Speaker Verification System
Kong Aik Lee, Hitoshi Yamamoto, Koji Okabe, Qiongqiong Wang, Ling Guo, Takafumi Koshinaka, Jiacen Zhang, Koichi Shinoda
- Published: 01 Jan 2019, Last Modified: 12 May 2023
- INTERSPEECH 2019
- Readers: Everyone
Speaker Augmentation and Bandwidth Extension for Deep Speaker Embedding
Hitoshi Yamamoto, Kong Aik Lee, Koji Okabe, Takafumi Koshinaka
- Published: 01 Jan 2019, Last Modified: 12 May 2023
- INTERSPEECH 2019
- Readers: Everyone

View all 23 publications

Co-Authors

View all 78 co-authors