About Me

I am an MPhil student in the Department of Computing at The Hong Kong Polytechnic University, supervised by Jason Chen ZHANG, Haoyang LI, and Ken Man Lung YIU.

Prior to this, I completed my BSc in Software Engineering at South China University of Technology.

My research interests include RAG, Graph4Agents, Graph Foundation Models, GNN, and AI4Science.

Publications

Haoyang LI, Yuming XU, et al. “When Speed Meets Accuracy: An Efficient and Effective Graph Model for Temporal Link Prediction.” VLDB 2025. [paper]
Luyu QIU, Yuming XU, et al. “Towards A Generalizable and Expressive Graph Neural Network for Graph-Level Tasks with Theoretical Guarantees.” VLDBJ 2026. Accepted, to appear in.
Yuming XU, et al. “Securing Retrieval-Augmented Generation: A Taxonomy of Attacks, Defenses, and Future Directions.” [paper]
Yuming XU, et al. “Fast and Faithful: A Lightweight Spatio-Temporal GNN for Semi-Supervised Air Quality Forecasting with Inductive Capability.” IEEE Big Data 2025. [paper]
Haoyang LI, Yuming XU, et al. “Revisiting Graph Neural Networks for Graph-level Tasks: Taxonomy, Empirical Study, and Future Directions.” [paper]
Mingtao ZHANG*, Yuming XU*, et al. “Can Graph Foundation Models Replace Graph Neural Networks? An Experimental Study with Theoretical Analysis.” (* Co-first author)
Zhuohan GE, Nicole HU, Darian LI, Yubo WANG, Shihao QI, Yuming XU, et al. “A Survey of Large Language Models in Mental Health Disorder Detection on Social Media.” ICDEW 2025. [paper]

Reviewer: IEEE Transactions on Computational Social Systems