I am a Professor and Associate Head of the Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, and Director of PolyU Research Centre for Privacy and Security Technologies in Future Smart Systems (RCPST). My research interests include adversarial machine learning, data privacy, database and network security, mobile, spatiotemporal and social databases. Aside from research, I lead the ASTAPLE lab, and the PolyU CTF Team. I am a senior member of IEEE, ACM, and CCF. I am also a certified Cisco CCNA Security Trainer. More information can be found in my CV.
Sticky Posts
(New 2026!) Multiple PhD students, research assistants, and postdocs wanted
I have openings for 2~3 PhD students (2026 in-take), and 4+ research assistants/postdoc researchers (immediately available) in the field of ...
Recent Posts
GRF Research Grant Awarded
A research project entitled "Privacy-Preserving Multimodal Data Management: A Database Perspective" has been awarded by Research Grant Council, HKSAR with ...
(New 2026!) Multiple PhD students, research assistants, and postdocs wanted
I have openings for 2~3 PhD students (2026 in-take), and 4+ research assistants/postdoc researchers (immediately available) in the field of ...
Two Papers Accepted by ICCV 2025
Our papers “‘Reminiscence Attack on Residuals: Exploiting Approximate Machine Unlearning for Privacy” and "Federated Continuous Category Discovery and Learning" are ...
One Paper Accepted by VLDB 2025
Our paper “PrivAGM: Secure Construction of Differentially Private Directed Attributed Graph Models on Decentralized Social Graphs” is accepted by VLDB ...
One Paper Accepted by ACL 2025
Our paper “‘Yes, My LoRD.’ Guiding Language Model Extraction with Locality Reinforced Distillation” is accepted by the 63rd Annual Meeting ...
One Paper Accepted by ICML 2025
Our paper “Does Low Rank Adaptation Lead to Lower Robustness against Training-Time Attacks?” is accepted by 42nd International Conference on ...
Seven Papers Accepted by ICDE 2025
In addition to the previous news that two papers were accepted by ICDE 2025 in round 1, five more papers ...
One Paper Accepted by IEEE S&P 2025
Our paper “Randomized Response to Randomized Index: Answering Subset Counting Queries with Local Differential Privacy” is accepted by IEEE Symposium ...
One Paper Accepted by PVLDB 2025
Our paper “Privacy for Free: Leveraging Local Differential Privacy Perturbed Data from Multiple Services” is accepted by The Proceedings of ...
Two Papers Accepted by ACM TheWebConf 2025
Our papers “MER-Inspector: Assessing Model Extraction Risks from An Attack-Agnostic Perspective” and "FUNU: Boosting Machine Unlearning Efficiency by Filtering Unnecessary ...
