I am a Professor with the Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University. 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, the PolyU CTF Team, and serve as the program leader of Bachelor of Science (Honours) in Information Security. 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!) Multiple PhD students, research assistants, and postdocs wanted
I have openings for 3+ PhD students (2024 in-take), and 4+ research assistants/postdoc researchers (immediately available) in the field of ...
Recent Posts

Two Papers Accepted by IEEE ICDE 2024
Our papers “LDPRecover: Recovering Frequencies from Poisoning Attacks against Local Differential Privacy” and “FRESH: Towards Efficient Graph Queries in an ...

Serving on IEEE TIFS Editorial Board
I start to serve as an associate editor on the editorial board of IEEE Transactions on Information Forensics and Security ...

One Paper Accepted by PVLDB 2024
Our paper "DPSUR: Accelerating Differentially Private Stochastic Gradient Descent Using Selective Update and Release” has been accepted by PVLDB 2024 ...

Serving on IEEE TKDE Editorial Board
I start to serve as an associate editor on the editorial board of IEEE Transactions on Knowledge and Data Engineering ...
CFP: Special Issue on AI Empowered Edge Computing (ACM TOMM)
TOMM_AIEmpoweredEdgeComputingDownload ...
Three Papers Accepted by IEEE TMC, TDSC, and ACM TOPS
Our paper “TED+Utility-Aware Time Series Data Release with Anomalies under TLDP” has been accepted by IEEE Transactions on Mobile Computing ...
Four Papers Accepted by IEEE TKDE, T-ITS, ACM TOSN, and Computers&Security
Our paper “TED+: Towards Discovering Top-k Edge-Diversified Patterns in a Graph Database” has been accepted by IEEE TKDE. Our paper ...
(New!) Multiple PhD students, research assistants, and postdocs wanted
I have openings for 3+ PhD students (2024 in-take), and 4+ research assistants/postdoc researchers (immediately available) in the field of ...

GRF Research Grant Awarded
A research project entitled " Local Tweaks for Privacy-Preserving Training in Machine Learning at Scale " has been awarded by ...

Two Papers Accepted by IEEE TIFS and TKDE
Our paper “Collaborative Sampling for Partial Multi-dimensional Value Collection under Local Differential Privacy” has been accepted by IEEE TIFS. Our ...