Yuxiang Zhang

About Me

I am currently a Ph.D. student in the AI Thrust, Information Hub, at HKUST (Guangzhou), advised by Prof. Tianxiang Zhao. I received my M.S. degree in Computer Science and Technology from the Institute of Computing Technology, Chinese Academy of Sciences, where I was recommended for direct admission and worked with Prof. Xiaochun Ye. I obtained my B.S. degree from Xidian University.

Top News

• [Mar 2026] Poisoning the Inner Prediction Logic of Graph Neural Networks for Clean-Label Backdoor Attacks is now available on arXiv.

• [May 2025] Revisiting Edge Perturbation for Graph Neural Network in Graph Data Augmentation and Attack was accepted by IEEE Transactions on Knowledge and Data Engineering (TKDE).

• [Dec 2024] SCL-GNN: Towards Generalizable Graph Neural Networks via Spurious Correlation Learning is now available on arXiv.

• [May 2024] Disttack: Graph Adversarial Attacks Toward Distributed GNN Training was accepted by Euro-Par 2024.

Research Interests

My current research focuses on LLM Post-training.

Selected Publications

• BiPACE: Bisimulation-Guided Policy Optimization with Action Counterfactual Estimation for LLM Agents
  Hanyang Wang, Weijieying Ren, Yuxiang Zhang, Ding Cao, Zhizhao Zeng, Ke Zeng, Tianxiang Zhao.
  arXiv:2606.25556, 2026.

• Poisoning the Inner Prediction Logic of Graph Neural Networks for Clean-Label Backdoor Attacks
  Yuxiang Zhang, Bin Ma, Enyan Dai.
  arXiv:2603.05004, 2026.

• Revisiting Edge Perturbation for Graph Neural Network in Graph Data Augmentation and Attack
  Xin Liu^†, Yuxiang Zhang^†, Meng Wu, Mingyu Yan, Kun He, Wei Yan, Shirui Pan, Xiaochun Ye, Dongrui Fan.
  IEEE TKDE (CCF-A).
  ^† Equal contribution.

• Disttack: Graph Adversarial Attacks Toward Distributed GNN Training
  Yuxiang Zhang, Xin Liu, Meng Wu, Mingyu Yan, Wei Yan, Xiaochun Ye, Dongrui Fan.
  Euro-Par 2024 (CCF-B).

Honors & Awards

• [2025] Outstanding Graduate, Institute of Computing Technology, CAS.

• [2024] Merit Student, University of Chinese Academy of Sciences.

• [2022] Summa Cum Laude, Xidian University.

• [2022] First Class Scholarship for Final-year Undergraduates, Xidian University.

• [2020] Chinese National Scholarship for Undergraduates.

• [2019] Chinese National Scholarship for Undergraduates.