About

平岡 達也 (Hiraoka, Tatsuya) is a researcher in natural language processing, focusing on tokenization and interpretability. His research explores the nature of language as viewed through machine learning models, asking what linguistic structure emerges within them and how it relates to human language.

Current Positions

• Postdoctoral Associate at MBZUAI, MINT Team
• Visiting Scientist at RIKEN, Natural Language Understanding Team
• Visiting Assistant Professor at NAIST, Watanabe Lab

Research Interests

• Natural Language Processing
  • Word Segmentation / Tokenization
  • Interpretability
• Linguistics
  • Language Acquisition
  • Syntax
  • Morphology

Education

• Doctor of Engineering in Artificial Intelligence. Tokyo Institute of Technology, Okazaki Lab. 2022.
  • Supervisor: Prof. Naoaki Okazaki
  • Doctoral Dissertation: Task-Oriented Word Segmentation
• Master of Engineering. Nara Institute of Science and Technology, Computational Linguistics Lab. 2019.
  • Supervisor: Prof. Yuji Matsumoto
• Bachelor of Arts. Waseda University, School of Education, Department of English Language and Literature. 2017.
  • Supervisor: Prof. Masakazu Kuno

Work experience

Full-time Job

• 2024.6 - present: Research Associate I (Postdoc)
  • Mohamed bin Zayed University of Artificial Intelligence (MBZUAI).
  • MINT-NLP Team
• 2022.4 - 2024.5: Ph.D Researcher
  • Fujitsu Limited.

Part-time / Visiting Job

• 2025.7 - present: Visiting Assistant Professor
  • Nara Institute of Science and Technology (NAIST).
• 2024.8 - present: Visiting Scientist
  • Institute of Physical and Chemical Research (RIKEN).
• 2023.6 - 2024.3: Part-time Researcher
  • Tokyo Institute of Technology.
• 2020.4 - 2022.3: Research Assistant
  • The New Energy and Industrial Technology Development Organization (NEDO).
• 2019.4 - 2020.3: Research Assistant
  • National Institute of Information and Communications Technology (NICT).
• 2019.1 - 2022.3: Part-time Researcher
  • Retrieva, inc.
• 2017.8 - 2017.9: Research Internship
  • Retrieva, inc.
• 2017.5 - 2019.3: Research Assistant
  • Institute of Physical and Chemical Research (RIKEN).

Teaching Experience

Part-time Lecturer

• 2024: オブジェクト指向プログラミング / Object Oriented Programming
  • 愛媛大学 / Ehime University
• 2023: オブジェクト指向プログラミング / Object Oriented Programming
  • 愛媛大学 / Ehime University
• 2023: 先端通信システム特論 / Advanced Communication System Engineering. Tokyo Institute of Technology
  • 東京工業大学 / Tokyo Institute of Technology
• 2022: オブジェクト指向プログラミング / Object Oriented Programming
  • 愛媛大学 / Ehime University

Teaching Assistant

• 2024: NLP701/805 Natural Language Processing
  • Mohamed bin Zayed University of Artificial Intelligence
• 2019: 機械学習 / Machine Learning
  • 東京工業大学 / Tokyo Institute of Technology
• 2018: 自然言語処理 / Natural Language Processing
  • 奈良先端科学技術大学院大学 / Nara Institute of Science and Technology