Trustworthy User Modelling and Personalization (TUMP)

The TUMP Lab advances trustworthy user modeling and personalization through cutting-edge AI techniques, human-centric LLM-based user simulation, and rigorous benchmarking via open-source frameworks.

Research Focus:

  • Designing trustworthy recommendation algorithms—robust, diverse, fair, explainable, and privacy-preserving—by applying cutting-edge techniques e.g., deep learning and large language models across various domains including e-commerce, multimedia, location-based social networks, and healthcare.
  • Developing LLM-based user simulators for human-centric evaluation and optimization of recommender systems.
  • Benchmarking recommender systems through rigorous evaluation and fair comparison by advancing open-source libraries such as DaisyRec and DaisyRec-v2.0.

Latest News

[Apr 2026] Professor Sun was invited to give a talk on "User-centric LLM-based Recommender Systems" at Southern University of Science and Technology, China!
[Apr 2026] Professor Sun will serve as the Proceedings Chair for ACM UMAP 2027!
[Apr 2026] Professor Sun will serve as the General Co-Chair for ACM SIGIR-AP 2026!
[Apr 2026] Professor Sun was invited as the WIE Chair for the 2026 International Conference on Artificial Intelligence and Computational Modeling!
[Apr 2026] Two papers were accepted by ACL 2026 (1 Main + 1 Findings). Congratulations to all co-authors!
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