I am currently a third-year Ph.D candidate in the Data and Knowledge Research Group (DKR), School of Computer Science and Engineering, University of New South Wales (UNSW). I am co-supervised by Dr. Xiaoyang Wang, Prof. Wenjie Zhang, and Prof. Xuemin Lin. My research interest includes Graph Mining, Hypergraph Learning, and Data-centric AI.

Prior to that, I obtained my bachelor degree in Data Science and Big Data Technology from Tongji University, China, in 2023. I was a research intern at Fintech Lab in Tongji University, supervised by Prof. Dawei Cheng.

📢📢 We present, to our knowledge, the first comprehensive survey of knowledge extraction threats and defenses in LLM agent ecosystems, available on Preprints.org. We hope this survey draws greater attention to the security of knowledge assets and the intellectual property concerns surrounding their extraction and use.

🔥 News

2026.10: Our paper A Survey of Knowledge Extraction Attacks and Defenses in LLM Agent Ecosystems is now available on Preprints.org. 🚀
2026.8: 🎉🎉 one paper was accepted by EMNLP 2026
2026.5: 🎉🎉 two papers were accepted by ICML 2026
2026.3: 🎉🎉 one paper was accepted by TKDE 2026
2026.2: 🎉🎉 one paper was accepted by ICDE 2026

📝 Selected Publications

(Full list of publications can be found in Google Scholar.)

^* Corresponding author.

📄 Preprints

arXiv 2026

Overview of Universal Graph Backdoor Defense

Universal Graph Backdoor Defense: A Feature-based Homophily Perspective

Mengting Pan, Fan Li^*, Chen Chen, Xiaoyang Wang

arXiv preprint, 2026

[PDF]

🔬 Open Source Projects

DHG-Bench : The first benchmark toolkit for deep hypergraph learning, supporting evaluation of various Hypergraph neural networks (HNNs) in effectiveness, efficiency, robustness, and fairness across diverse datasets and tasks.

Role: Project Leader and Main Contributor

🎖 Honors and Awards

Chinese Government Award for Outstanding Overseas Study Elite (Only 40 recipients in Australia)
ICML 2026 Silver Reviewer Award
IEEE ICDE 2025 Student Travel Grant (Only 10 recipients worldwide)
University International Postgraduate Award (UIPA) granted by University of New South Wales - 2024

📖 Academic Services

Program Committee Member:

ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD): 2025, 2026, 2027;
International Conference on Learning Representations (ICLR): 2026;
International Conference on Machine Learning (ICML): 2026.
Conference on Neural Information Processing Systems (NeurIPS): 2026;
International Conference on Database Systems for Advanced Applications (DASFAA): 2027.
ACM The Web Conference (WWW): 2025;
Annual AAAI Conference on Artificial Intelligence (AAAI): 2026, 2027;

Journal Reviewer:

ACM Transactions on Knowledge Discovery from Data (TKDD).
Knowledge-Based Systems

🎓 Educations

2023.09 - now, Ph.D Candidate, University of New South Wales, Sydney.
2019.09 - 2023.06, Undergraduate, Tongji University, Shanghai.