I am a third-year PhD student at the Gaoling School of Artificial Intelligence, Renmin University of China, under the supervision of Prof. Xu Chen. I hold a bachelor’s degree in Software Engineering from Beijing Jiaotong University. My research interests lie in recommendation systems and LLM-based Agents, with a particular focus on the role-playing, simulation and human-like behaviors of Agents.

News

• 2025.05: We release YuLan-OneSim(玉兰-万象), a code-free social simulation platform with AI social researcher, supporting large-scale simulations up to 100,000 LLM-based agents.
• 2025.05: One paper is accepted by main conference of ACL.
• 2025.01: One paper is accepted by main conference of NAACL.
• 2024.12: One paper is accepted by TOIS.
• 2024.03: Our survey about LLM-based agent is accepted by FCS.
• 2024.02: One paper is accepted by WWW 2024.
• 2023.12: One paper is accepted by AAAI 2024.

Publications

Published Papers

• ACL 2025 - Investigating and Extending Homans’ Social Exchange Theory with Large Language Model based Agents, Lei Wang, Zheqing Zhang, Xu Chen

• NAACL 2025 CharacterBox: Evaluating the Role-Playing Capabilities of LLMs in Text-Based Virtual Worlds, Lei Wang, Jianxun Lian, Yi Huang, Yanqi Dai, Haoxuan Li, Xu Chen, Xing Xie, Ji-Rong Wen

• TOIS User Behavior Simulation with Large Language Model based Agents, Lei Wang, Jingsen Zhang, Hao Yang, Zhiyuan Chen, Jiakai Tang, Zeyu Zhang, Xu Chen, Yankai Lin, Ruihua Song, Wayne Xin Zhao, Jun Xu, Zhicheng Dou, Jun Wang, Ji-Rong Wen

• FCS A Survey on Large Language Model based Autonomous Agents, Lei Wang, Chen Ma*, Xueyang Feng*, Zeyu Zhang, Hao Yang, Jingsen Zhang, Zhi-Yuan Chen, Jiakai Tang, Xu Chen, Yankai Lin, Wayne Xin Zhao, Zhewei Wei, Ji-Rong Wen

• WWW 2024 Causally Debiased Time-aware Recommendation, Lei Wang, Chen Ma, Xian Wu, Zhaopeng Qiu, Yefeng Zheng, Xu Chen

• AAAI 2024 Would You Like Your Data to Be Trained? A User Controllable Recommendation Framework, Lei Wang, Xu Chen, Zhenhua Dong, Quanyu Dai

Preprints

• YuLan-OneSim: Towards the Next Generation of Social Simulator with Large Language Models, Lei Wang, Heyang Gao, Xiaohe Bo, Xu Chen, Ji-Rong Wen

Resource

• ICLR 2025 MMRole: A Comprehensive Framework for Developing and Evaluating Multimodal Role-Playing Agents, Yanqi Dai, Huanran Hu, Lei Wang, Shengjie Jin, Xu Chen, Zhiwu Lu

• NeurIPS 2023 REASONER: an explainable recommendation dataset with comprehensive labeling ground truths, Xu Chen, Jingsen Zhang, Lei Wang, Quanyu Dai, Zhenhua Dong, Ruiming Tang, Rui Zhang, Li Chen, Xin Zhao, Ji-Rong Wen

• SIGIR 2023 Towards a more user-friendly and easy-to-use benchmark library for recommender systems, Xu Chen, Jingsen Zhang, Lei Wang, Quanyu Dai, Zhenhua Dong, Ruiming Tang, Rui Zhang, Li Chen, Xin Zhao, Ji-Rong Wen

Educations

• 2022.09 - 2027.06 (expected), PhD in Artificial Intelligence, Gaoling School of Artificial Intelligence, Renmin University of China.
• 2018.09 - 2022.06, Bachelor’s in Software Engineering, Beijing Jiaotong University.

Internships

• 2024.12 - now, Tonyi Lab, Alibaba, Beijing.
• 2024.01 - 2024.07, MSRA, Social Computing Group, mentored by Dr. Jianxun Lian.