Ren Kishimoto

I am a first-year Master’s student at Institute of Science Tokyo (formerly Tokyo Tech), majoring in Industrial Engineering and Economics. My research interests include Off-policy Learning, Contextual Bandits, Recommender Systems, and Two-sided Matching.

I have conducted research internships at LINE Yahoo Research, CyberAgent AI Lab, and Hanjuku Kaso Co., Ltd.. I also have practical experience as a Data Scientist intern at CyberAgent, Recruit, and DeNA, working on improving recommendation algorithms and data analysis.

Research Interests

Off-policy Learning & Evaluation
Contextual Bandits & Reinforcement Learning
Recommender Systems
Two-sided Matching
Fairness & Diversity
Mathematical Optimization

For more details about my research and projects, please check the Publications and Experience pages.