He is currently a 2nd year M.S. student at Gaoling School of Artificial Intelligence, Renmin University of China. He is working in IIR lab. His supervisors are AP. Xiao Zhang and Prof. Jun Xu. His major research interests are about Reinforcement Learning, Imitation Learning, Recommender System via Language Models, Post Search Recommendation in Industrial Systems etc.

Education

• 09.2023-present M.S. student, Artificial Intelligence, Gaoling School of Artificial Intelligence, Renmin University of China.
• 08.2019-06.2023 B.E., Computer Science, School of Computer Science and Technology, XIDIAN University.

Publications

• (First author) “Enhancing Sequential Recommendations through Multi-Perspective Reflections and Iteration.” Submitted to RecSys’25 arxiv
  • LLM4Rec, Reflection, reinforcement learning
• (First author) “Decoding Recommendation Behaviors of In-Context Learning LLMs Through Gradient Descent” Submitted to RecSys’25 arxiv
  • LLM4Rec, In-context Learning, theoretical analysis
• (First author) “IBCB: Efficient Inverse Batched Contextual Bandit for Behavioral Evolution History” Submitted to TPAMI arxiv
  • Batched contextual bandits, imitation Learning for recommendation
• (Second author) “MAPS: Motivation-Aware Personalized Search via LLM-Driven Consultation Alignment” ACL’25 reviewing (444)
  • LLM-driven personalized search engine
• One more paper about Kernel Ridge Regression (KRR).
• Google Scholar: Yi Xu at RUC.

Teaching

• Teaching Assistant, Introduction to Artificial Intelligence, in GSAI, RUC, Spring 2024
• Teaching Assistant, Big Data Analysis, in GSAI, RUC, Fall 2024

Honor

• The Second Award of Graduate Study Scholarship (Master Student) in Gaoling School of Artificial Intelligence, Renmin University of China, 2023
• CET-6 Score: 580/710, 2023
• Merit Student, Shaanxi Province, 2023
• Lenovo Scholarship, XIDIAN University, 2021
• National Scholarship, XIDIAN University, 2020