Hiroaki Ito / 伊藤 大陽

Profile

• E-mail: contact.hiroaki.110 [at] gmail.com

• X: @_hiroaki_ito_

• GitHub: @hiroaki-1-1-0

• LinkedIn: @hiroaki110

Research Interests

• Natural Language Processing

  • AI Ethics

  • Humor

  • Mechanistic Interpretability

• LLM/VLM Post-Training

  • On-Policy Self-Distillation (OPSD)

  • Reinforcement Learning from Verifiable Rewards (RLVR)

• ALife

  • Physical AI

  • AI Agent

Publications

Domestic Conference

• Hiroaki Ito, Hwichan Kim, Tosho Hirasawa, Mamoru Komachi. 事後学習による相対評価性能の向上は、ユーモア理解能力の改善を意味するのか？. YANS2026. August, 2026. [link]

• Iori Yamashita, Hajime Kiyama, Hiroaki Ito, Mamoru Komachi. LLM-as-a-Judgeにおける絶対評価と相対評価の整合性はスコア帯でどのように変わるか？. YANS2026. August, 2026. [link]

• Hiroaki Ito, Hwichan Kim, Tosho Hirasawa, Ritsu Sakabe, Souto Ohira, Mamoru Komachi. Analyzing Changes in Thinking Processes of LLMs in Oogiri Evaluation through Relative-Assessment-Based RLVR. JSAI2026. June, 2026. [link]

Symposium

• Hiroaki Ito, Eri Sato-Shimokawara. Automatic Chewing Detection Using Peak Detection with RGB Camera. CcSR 2025. February, 2025. [link]

Awards

Hackathon

20th Young Researchers' Symposium on Natural Language Processing (YANS2025) Interdisciplinary Exchange Hackathon (Sep. 2025)

• YANS Organizing Committee Special Award

Business Plan Competition

21st Campus Venture Grand Prix Tokyo (Dec. 2024)

• Finalist

• Nikkan Kogyo Shimbun Award

TMU EntreBloom Business Idea Contest 2024 (Dec. 2024)

• Grand Prize

• ATOMica & KDDI Prize

Work Experience

Collaborative Research

Recruit Co., Ltd.  (Jun. 2026 - Present, x months)

Commissioned Research

Fuji Electric Co., Ltd. (Sep. 2025 - Present, x months)

• Table/Figure Extraction Using VLM

Part-Time Engineer

NexaScience Inc.  (Jan. 2026 - Feb. 2026, 2months)

• R&D of AI Agents as Part of the National Project, "GENIAC"

Internship

NEC Corporation (Aug. 2025 - Sep. 2025, 2 months)

• Research on ODQA with a Browsing Agent

Education

Apr. 2025 - Present

• Graduate School of Social Data Science, Hitotsubashi University

  • Social Computational Linguistics Group (Komachi Laboratory)

Apr. 2021 - Mar. 2025

• Department of Computer Science, Faculty of Systems Design, Tokyo Metropolitan University

  • Shimokawara Laboratory

  • Bachelor of Computer Science

Skills

Machine Learining Tools

• scikit-learn/PyTorch

• Transformers/Datasets

• vLLM/Flash Attention/smolagents

• TRL/NeMo RL/wandb

Relevant Tools

• Git/GitHub

• Docker/Conda/venv/gpustat/tmux

• Codex/Cursor/GitHub Copilot

• Slack/Figma

Languages

• Japanese: Native

• English: TOEIC L&R 795 (Jun. 2024), TOEFL iBT 73 (Jun. 2024)