Masanari Oi

MS student, Department of Computer Science, Institute of Science Tokyo (Formaly known as Tokyo Institute of Technology)

Joined

December 2023

Names

Masanari Oi (Preferred)

Masanari Ohi

Emails

****@m.titech.ac.jp (Confirmed)

****@nlp.c.titech.ac.jp (Confirmed)

****@m.isct.ac.jp (Confirmed)

Personal Links

Career & Education History

MS student

Department of Computer Science, Institute of Science Tokyo (Formaly known as Tokyo Institute of Technology) (titech.ac.jp)

2024 – 2026

Undergrad student

Department of Computer Science, Tokyo Institute of Technology, Tokyo Institute of Technology (titech.ac.jp)

2020 – 2024

Advisors, Relations & Conflicts

Coauthor

Nakamasa Inoue

2024 – Present

Coauthor

Naoaki Okazaki

2023 – Present

Expertise

Evaluation of Large Language Models

2023 – Present

Vision and Language

2023 – Present

Publications

Why We Build Local Large Language Models: An Observational Analysis from 35 Japanese and Multilingual LLMs
Koshiro Saito, Sakae Mizuki, Masanari Oi, Taishi Nakamura, Taihei Shiotani, Koki Maeda, Youmi Ma, Kakeru Hattori, Kazuki Fujii, Takumi Okamoto, Shigeki Ishida, Hiroya Takamura, Rio Yokota, Naoaki Okazaki
- 1st workshop on Multilingual and Equitable Language Technologies (MELT), COLM 2025
- Readers: Everyone
Rewriting Pre-Training Data Boosts LLM Performance in Math and Code
Kazuki Fujii, Yukito Tajima, Sakae Mizuki, Masaki Kawamura, Hinari Shimada, Taihei Shiotani, Koshiro Saito, Masanari Oi, Taishi Nakamura, Takumi Okamoto, Shigeki Ishida, Kakeru Hattori, Youmi Ma, Hiroya Takamura, Rio Yokota, Jun Sakuma, Naoaki Okazaki
- ICLR 2026 Poster
- Readers: Everyone
Autoregressive Direct Preference Optimization
Masanari Oi, Mahiro Ukai, Masahiro Kaneko, Naoaki Okazaki, Nakamasa Inoue
- Submitted to ICLR 2026
- Readers: Everyone
Rewriting Pre-Training Data Boosts LLM Performance in Math and Code
Kazuki Fujii, Yukito Tajima, Sakae Mizuki, Hinari Shimada, Taihei Shiotani, Koshiro Saito, Masanari Ohi, Masaki Kawamura, Taishi Nakamura, Takumi Okamoto, Shigeki Ishida, Kakeru Hattori, Youmi Ma, Hiroya Takamura, Rio Yokota, Naoaki Okazaki
- Submitted to NeurIPS 2025 Datasets and Benchmarks Track
- Readers: Everyone
Building Instruction-Tuning Datasets from Human-Written Instructions with Open-Weight Large Language Models
Youmi Ma, Sakae Mizuki, Kazuki Fujii, Taishi Nakamura, Masanari Ohi, Hinari Shimada, Taihei Shiotani, Koshiro Saito, Koki Maeda, Kakeru Hattori, Takumi Okamoto, Shigeki Ishida, Rio Yokota, Hiroya Takamura, Naoaki Okazaki
- COLM 2025
- Readers: Everyone
Building Instruction-Tuning Datasets from Human-Written Instructions with Open-Weight Large Language Models
Youmi Ma, Sakae Mizuki, Kazuki Fujii, Taishi Nakamura, Masanari Ohi, Hinari Shimada, Taihei Shiotani, Koshiro Saito, Koki Maeda, Kakeru Hattori, Takumi Okamoto, Shigeki Ishida, Rio Yokota, Hiroya Takamura, Naoaki Okazaki
- CoRR 2025
- Readers: Everyone
HALL-E: Hierarchical Neural Codec Language Model for Minute-Long Zero-Shot Text-to-Speech Synthesis
Yuto Nishimura, Takumi Hirose, Masanari Ohi, Hideki Nakayama, Nakamasa Inoue
- ICLR 2025
- Readers: Everyone
HALL-E: Hierarchical Neural Codec Language Model for Minute-Long Zero-Shot Text-to-Speech Synthesis
Yuto Nishimura, Takumi Hirose, Masanari Ohi, Hideki Nakayama, Nakamasa Inoue
- ICLR 2025 Poster
- Readers: Everyone
Continual Pre-Training for Cross-Lingual LLM Adaptation: Enhancing Japanese Language Capabilities
Kazuki Fujii, Taishi Nakamura, Mengsay Loem, Hiroki Iida, Masanari Ohi, Kakeru Hattori, Hirai Shota, Sakae Mizuki, Rio Yokota, Naoaki Okazaki
- COLM
- Readers: Everyone
Building a Large Japanese Web Corpus for Large Language Models
Naoaki Okazaki, Kakeru Hattori, Hirai Shota, Hiroki Iida, Masanari Ohi, Kazuki Fujii, Taishi Nakamura, Mengsay Loem, Rio Yokota, Sakae Mizuki
- COLM
- Readers: Everyone

View all 19 publications

Co-Authors

View all 29 co-authors