Hi,

I am a PhD student at the Information Retrieval lab (THUIR), the Department of Computer Science and Technology, Tsinghua University. Prof Min Zhang is my supervisor. Before that, I received my Bachelor and Master degree in Computer Science and Technology, Tsinghua University.

Information Retrival Group
National Lab of Intelligent Technology and System
Department of Computer Science and Technology
Tsinghua University, Beijing, China

JiayinWangTHU AT gmail.com

Research Interests: Personalization, User Modeling, LLM Memory and Knowledge Update.

Selected Paper List

2025

• Intelligent Agents with Adaptive Knowledge Fusion for Personalized Recommendation (WWW 2025 Competition)

  Yuanqing Yu, Zhefan Wang, Chumeng Jiang, Xinyi Li, Jiayin Wang, Min Zhang.

• Beyond Utility: Evaluating LLM as Recommender (WWW 2025)

  Chumeng Jiang, Jiayin Wang, Weizhi Ma, Charles L. A. Clarke, Shuai Wang, Chuhan Wu, Min Zhang.

• PerSRV: Personalized Sticker Retrieval with Vision-Language Model (WWW 2025)

  Heng Er Metilda Chee^, Jiayin Wang^, Zhiqiang Guo, Weizhi Ma, Min Zhang.

2024

• Interpret the Internal States of Recommendation Model with Sparse Autoencoder. (Arxiv 24)

  Jiayin Wang, Xiaoyu Zhang, Weizhi Ma, Min Zhang.

• A User-Centric Multi-Intent Benchmark for Evaluating Large Language Models. (EMNLP 2024. Resource Award)

  Jiayin Wang, Fengran Mo, Weizhi Ma, Peijie Sun, Min Zhang, Jian-Yun Nie.

• Large Language Models as Evaluators for Recommendation Explanations. (RecSys 2024)

  Xiaoyu Zhang, Yishan Li, Jiayin Wang, Bowen Sun, Weizhi Ma, Peijie Sun, Min Zhang.

• Understanding User Experience in Large Language Model Interactions. (Arxiv 24)

  Jiayin Wang, Weizhi Ma, Peijie Sun, Min Zhang, Jian-Yun Nie.

2020-2023

Jiayin Wang, Weizhi Ma, Peijie Sun, Min Zhang, Jian-Yun Nie.

• Measuring Item Global Residual Value for Fair Recommendation. (SIGIR 23)

  Jiayin Wang, Weizhi Ma, Chumeng Jiang, Min Zhang, Yuan Zhang, Biao Li, Peng Jiang.

• Make Fairness More Fair: Fair Item Utility Estimation and Exposure Re-distribution. (KDD 22)

  Jiayin Wang, Weizhi Ma, Jiayu Li, Hongyu Lu, Min Zhang, Biao Li, Yiqun Liu, Peng Jiang, Shaoping Ma.

• MRAT: The Mixed Reality Analytics Toolkit. (CHI 20, Best Paper Award)

  M. Nebeling, M. Speicher, X. Wang, S. Rajaram, B.D. Hall, Z. Xie, A.R.E. Raistrick, M. Aebersold, E.G. Happ, J. Wang, Y. Sun, L. Zhang, L. Ramsier, R. Kulkarni.

Experiences

• Ph.D student, Department of Computer Science and Technology, Tsinghua University. 2024-
• Research Assitant, Department of Computer Science and Technology, Tsinghua University. 2023-2024
• M.S., Department of Computer Science and Technology, Tsinghua University. 2020-2023
• B.E., Department of Computer Science and Technology, Tsinghua University. 2016-2020

TA

• Web and Information Retrival (Global Hybrid), Spring in 2022

Intern

• @University of Montreal, fall in 2023
• @UMich, summer in 2019