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Kohei Saijo / 西城 耕平
3rd year Ph.D. student in Media Intelligence Laboratory at Waseda University in Japan. Working on speech enhancement and source separation.
Research Interests
- Source separation
- Unsupervised learning
- Unified source separation
- Target sound extraction
- Blind source separation
- Speech enhancement
- Universal speech enhancement
Google Scholar | GitHub | X | CV
Experiences
Oct. 2024 - Present
National Institute of Advanced Industrial Science and Technology (AIST), Tokyo, Japan
- Research assistant
- Worked on unsupervised pre-training for music source separation (WASPAA 2025)
- Mentor: Yoshiaki Bando
Nov. 2023 - Aug. 2024
Mitsubishi Electric Research Laboratories, MA, USA
- Research internship
- Worked on unsupervised speech separation (Interspeech 2024), state-of-the-art speech separation model (IWAENC 2024), text-queried target sound extraction (ICASSP 2025), and unified source separation (ICASSP 2025)
- Mentor: Jonathan Le Roux
Apr. 2023 - July 2023
Carnegie Mellon University, Pittsburgh, PA, USA
- Visiting scholar
- Worked on multi-task universal speech enhancement (ASRU 2023)
- Mentor: Shinji Watanabe
Sep. 2021 - Apr. 2022
LINE Corporation, Tokyo, Japan
- Part-time researcher
- Worked on unsupervised multi-channel source separation (Interspeech 2022)
- Mentor: Robin Scheibler
Aug. 2021 - Sep. 2021
LINE Corporation, Tokyo, Japan
- Research internship
- Worked on multi-channel joint source separation and dereverberation (Interspeech 2022)
- Mentor: Robin Scheibler
Contact
Address
Media Intelligence Lab.
Room 40-701 27 Waseda-machi
Shinjuku-ku, Tokyo 162-0042, Japan
saijo[at]pcl.cs.waseda.ac.jp