ML Engineer in Japan

• 📖 Master of Engineering (Department of Informatics)
  📆 2022.04 - 2024.03
  📍 University of Electro-Communications - Tokyo, Japan
• 📖 Bachelor of Engineering (Department of Informatics)
  📆 2018.04 - 2022.03
  📍 University of Electro-Communications - Tokyo, Japan

International Conference

• Kai Sugahara, Chihiro Yamasaki, Kazushi Okamoto: Is It Really Complementary? Revisiting Behavior-based Labels for Complementary Recommendation, In: Proceedings of the 18th ACM Conference on Recommender Systems (RecSys '24), XX-XX, 2024.
  • In press
  • DOI: 10.1145/3640457.3691705
• Kai Sugahara, Kazushi Okamoto: Keyword-based Research Field Discovery with External Knowledge Aware Hierarchical Co-clustering, In: Advanced Computational Intelligence and Intelligent Informatics, 153-166, 2024.
  • Session Best Presentation Award
  • DOI: 10.1007/978-981-99-7590-7_13

Journal

• Kai Sugahara, Kazushi Okamoto: Hierarchical Co-clustering with Augmented Matrices from External Domains, Pattern Recognition, 142, 109657, 2023.
  • DOI: 10.1016/j.patcog.2023.109657
• Kai Sugahara, Kazushi Okamoto: Hierarchical Matrix Factorization for Interpretable Collaborative Filtering, Pattern Recognition Letters, 180, 99-106, 2024.
  • DOI: 10.1016/j.patrec.2024.03.003
  • arXiv: 10.48550/arXiv.2311.13277 (Accepted Version)

Domestic Conference (in Japanese)

• 簀河原 皆, 山﨑 千寛, 梛木 佑真, 岡本 一志: アイテムの機能関係に注目した補完推薦に関する検討, 電子情報通信学会 技術研究報告, 2024.
  • Title (English): A Study of Complementary Recommendation Focused on Functional Aspects