Hi there! I am a Ph.D. Candidate at the AI Engine Lab, Renmin University of China, supervised by Prof. Xu Chen.

My research interests primarily lie in Recommender Systems, LLM Agents, and AI for Social Science.

📧 Email: liyuanzi0313 [at] ruc.edu.cn liyuanzi0313 [at] outlook.com

Feel free to reach out if you have any questions or are interested in collaboration.

📖 Education

Ph.D. in Artificial Intelligence — Renmin University of China, Beijing Sept. 2025 – June 2030 (Expected)
B.S. in Computer Science — Shandong University, Qingdao Sept. 2021 – June 2025

📝 Publications

Benchmarking LLMs for Community Governance Simulation with Life-history Narratives
Xu Chen*, Yuanzi Li*, Lei Wang, Nan Lu, Yang Wang, Anding Wang, Lei Shi†, Xiaoxing Fu†, Ji-Rong Wen
arXiv, 2026 [PDF]
LLM Agents as Social Scientists: A Human–AI Collaborative Platform for Social Science Automation
Lei Wang, Yuanzi Li, Jinchao Wu, Heyang Gao, Xiaohe Bo, Xu Chen, Ji-Rong Wen
arXiv, 2026 [PDF]
Divergence Meets Consensus: A Multi-Source Negative Sampling Framework for Sequential Recommendation
Yuanzi Li, Lingjie Wang, Jingyu Zhao, Zihang Tian, Lei Wang, Xu Chen
SIGIR, 2026 [PDF]
Evaluating and Calibrating LLM Confidence on Questions with Multiple Correct Answers
Yuhan Wang, Shiyu Ni, Zhikai Ding, Zihang Zhan, Yuanzi Li, Keping Bi
arXiv, 2026 [PDF]
Towards Fast Domain Adaptation and Fine-Grained User Simulation for Conversational Recommender Systems
Yuanzi Li, Quanyu Dai, Xueyang Feng, Jingyu Zhao, Weipeng Zhang, Xu Chen, Zhenhua Dong, Huifeng Guo
NeurIPS 2026 (PersonaLM Workshop) [PDF]
Cultural Dynamics in Multi-Agent Systems: Joint Effects of Individual Openness and Information Flow on Culture Dissemination
Lei Wang, Jinchao Wu, Yuanzi Li, Junhao Wang, Xu Chen
The 1st International Conference on AI Scientists (ICAIS), 2025
🏆 The Most Social Impact Paper Award [PDF]

R²NS: Recall and Re-ranking of Negative Samples for Sequential Recommendation
Yuanzi Li, Xuri Ge, Jingyu Zhao, Yidan Wang, Jiyuan Yang, Zhumin Chen, Zhaochun Ren, Xin Xin
The Web Conference (WWW), 2026 [PDF]
Uncovering Selective State Space Model’s Capabilities in Lifelong Sequential Recommendation
Jiyuan Yang, Yuanzi Li, Jingyu Zhao, Hanbing Wang, Muyang Ma, Jun Ma, Zhaochun Ren, Mengqi Zhang, Xin Xin, Zhumin Chen, Pengjie Ren
arXiv, 2024 [PDF]

Research Intern @ Huawei Noah’s Ark Lab Feb. 2025 – July 2025
Mentors: Quanyu Dai, Zhenhua Dong
Research Assistant @ Information Retrieval Lab, Shandong University Oct. 2022 – June 2025
Supervisors: Prof. Pengjie Ren and Prof. Xin Xin

Reviewer / Program Committee Member: AAAI 2026 · ACL Rolling Review (ARR) · RecSys · SIGIR-AP · SIGIR · SIGKDD

Awesome-LLM4RS-Papers — A curated list of Large Language Models for Recommender Systems.
Recommendation-Paper-daily — Daily updates on recommendation system papers.