Haruhiko Yoshioka (よしおか はるひこ)

Nara Institute of Science and Technology
Graduate School of Science and Technology
Information Science
Software Engineering Laboratory, Ph.D. 1st Year

Research Topics & Expertise

I am researching methods to automatically interpret software developers’ eye tracking data using natural language processing techniques, enabling analysis through machine learning and deep learning, with the aim of supporting program comprehension.

Expertise

• Program Comprehension, Programming Education (Software Engineering)
• Eye Movement Analysis (Biological Information)
• Syntax Parsing, Distributed Representations, Deep Learning, Machine Learning (Natural Language Processing, Artificial Intelligence)

Contact

• E-mail: yoshioka.haruhiko.yi4[at]naist.ac.jp
• GitHub: hy20191108
• X: @zero12345six
• LinkedIn: Haruhiko Yoshioka
• Google Scholar: Haruhiko Yoshioka
• ORCID: 0009-0004-2353-1397
• researchmap: HaruhikoYoshioka

Research Achievements

Journal Articles

• Haruhiko Yoshioka and Hidetake Uwano, “An Analysis of Program Comprehension Process by Eye Movement Mapping to Syntax Trees,” Networking and Parallel/Distributed Computing Systems, Studies in Computational Intelligence, vol. 1125, pages 137–152, April 2024. (Peer-reviewed) [Springer, LAB]

International Conferences

• Kyogo Horikawa, Hidetake Uwano, Haruhiko Yoshioka, “Identifying Effective Program Comprehension Strategies through Gaze Transitions over Syntactic Elements,” The Fourteenth International Workshop on Eye Movements in Programming (EMIP 2026), Marrakech, Morocco, June 1, 2026. (Oral, Peer-reviewed, Accepted)
• Haruhiko Yoshioka, Takahiro Monno, Haruka Tokumasu, Taiki Wakamatsu, Yuki Ota, Nimmi Weeraddana, Kenichi Matsumoto, “Let’s Make Every Pull Request Meaningful: An Empirical Analysis of Developer and Agentic Pull Requests,” Mining Software Repositories (MSR) 2026 Mining Challenge, Rio de Janeiro, Brazil, April 13-14, 2026. [arXiv]
• Haruhiko Yoshioka, Kazumasa Shimari, Hidetake Uwano, Kenichi Matsumoto, “eye2vec: Learning Distributed Representations of Eye Movement for Program Comprehension Analysis,” The 2025 ACM Symposium on Eye Tracking Research & Applications (ETRA2025) LBW, no.51, Tokyo, Japan, 28 May 2025. (Poster, Peer-reviewed) [ACM, arXiv, LAB]
• Haruhiko Yoshioka, Sila Lertbanjongngam, Masayuki Inaba, Youmei Fan, Takashi Nakano, Kazumasa Shimari, Raula Gaikovina Kula, Kenichi Matsumoto, “Do Developers Depend on Deprecated Library Versions? A Mining Study of Log4j,” Mining Software Repositories (MSR) 2025 Mining Challenge, Ottawa, Canada, pages 314–318, April 2025. (Oral, Peer-reviewed) [IEEE, arXiv]
• Haruhiko Yoshioka, Kazumasa Shimari, Hidetake Uwano, Kenichi Matsumoto, “eye2vec: Vectorization of Eye Movement for Semantic-based Program Comprehension,” The 1st International Workshop on Intertwining Research & Education on Software (WIREDS 2024), Osaka, Japan, December 2024. (Oral, Non-peer-reviewed)
• Haruhiko Yoshioka and Hidetake Uwano, “An Analysis of Program Comprehension Process by Eye Movement Mapping to Syntax Trees,” in 26th IEEE/ACIS International Winter Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing (SNPD2023-Winter), Taichung, Taiwan, December 2023. (Oral, Peer-reviewed) [LAB]
• Haruhiko Yoshioka and Hidetake Uwano, “Automatic Mapping of Syntax Trees and Eye Movement for Semantic-Based Program Comprehension Pattern Extraction,” in International Symposium on Advances in Technology Education (ISATE) 2022, Online, pages 220–224, September 2022. (Oral, Peer-reviewed) [PDF, LAB]

Domestic Conferences (Peer-Reviewed)

• 吉岡春彦, 上野秀剛, “プログラム理解パターン抽出のための構文木と視線移動の自動マッピング手法,” ソフトウェア工学の基礎29, pages 34–42, 2022年11月. (Oral, Peer-reviewed) [DOI, LAB]

Workshops and National Conferences, etc. (Non-peer-reviewed)

• Haruhiko Yoshioka, Kazumasa Shimari, Hidetake Uwano, Kenichi Matsumoto, “From Eye Movements to Distributed Representations for Program Comprehension,” AI-Driven Software Engineering Summit for Fostering Next-Generation Researchers, Poster, Todaiji, Nara, Japan, 25 November 2025. [Web]
• 吉岡春彦, 嶋利一真, 上野秀剛, 松本健一, “視線移動の分散表現に基づくプログラム理解時の特徴抽出,” 情報処理学会研究報告, vol.2025-SE-220, no.7, pages 1–8, 札幌，北海道, 2025年7月15日.
• 吉岡春彦, 上野秀剛, “構文木と視線移動の自動マッピング手法を用いたプログラム理解過程の分析,” ソフトウェアエンジニアリングシンポジウム2023論文集, pages 183–190, 2023年8月. (Oral, Non-peer-reviewed) [NII, LAB]

Awards and Recognitions

• 吉岡春彦, 上野秀剛, “構文木と視線移動の自動マッピング手法を用いたプログラム理解過程の分析,” ソフトウェアエンジニアリングシンポジウム2023 研究奨励賞, 2023年8月. [NII]

Theses, Undergraduate Theses, and Special Research

• Haruhiko Yoshioka, “Learning Distributed Representations of Eye Movement to Analyze Program Comprehension Process,” Master’s Thesis, Nara Institute of Science and Technology, September 2025. [NAIST]
• 吉岡春彦, “構文木と視線移動の自動マッピング手法を用いたプログラム理解過程の分析,” 奈良工業高等専門学校 専攻科特別研究, 2024年2月. [LAB]
• 吉岡春彦, “意味に基づいたプログラム理解パターン抽出のための構文木と視線移動の自動マッピング,” 奈良工業高等専門学校 本科卒業研究, 2022年2月. [LAB]

Education

Academic Activities

University Activities

Awards & Others

JPHACKS2024

• Project: Eventpix (5th place out of 98 teams)
• JPHACKS Award
  • JPHACKS Innovator Certification
  • Sponsor Awards (Galirage Inc.)
• JPHACKS Hack Day
  • JPHACKS Finalist Award
  • Best Hack Day Award
  • Sponsor Award (Ezaki Glico Co., Ltd.)

Other Awards

• 2023 Academic Excellence Award for Graduates, National Institute of Technology, Nara College

Fellowship

• NAIST Granite Program (JST SPRING: Support for Pioneering Research Initiated by the Next Generation) (2025/10~)
  • Interview Article