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I am an Associate Professor with the Department of Electronic and Information Engineering, Hong Kong Polytechnic University. My research interests include data privacy and security, mobile and spatiotemporal databases, and internet of things. 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.

Recent Blogs

  1. (New!) PhD students and 4 postdoc wanted (contract starting from July 1, 2020) (10/2/2019) - I have openings for 1~2 PhD students (2021 in-take), 2~3 research assistants, and 4 postdoc researchers in the field of machine learning, data security and privacy. The detailed requirements are as follows: Bachelor or Master degree in Computer Science, Software Engineering or Information Engineering in well-known universities. Preferences are given to applicants with some research … Continue reading (New!) PhD students and 4 postdoc wanted (contract starting from July 1, 2020)
  2. One Paper Accepted in IEEE TKDE (12/17/2020) - Our paper “LF-GDPR: A Framework for Estimating Graph Metrics with Local Differential Privacy ” has been accepted for publish in IEEE Transactions on Knowledge and Data Engineering.
  3. One Paper Accepted in IEEE TDSC (12/6/2020) - Our paper “Protecting Decision Boundary of Machine Learning Model With Differentially Private Perturbation” has been accepted for publish in IEEE Transactions on Dependable and Secure Computing.
  4. One Paper Accepted in INFOCOM 2021 (12/5/2020) - Our paper “Beyond Value Perturbation: Differential Privacy in the Temporal Setting” has been accepted for publish in IEEE INFOCOM 2021.
  5. New NSFC Project Awarded (10/12/2020) - I have been awarded a new NSFC project (面上项目, 2021-2024) with title “机器学习即服务中的防欺诈和完整性验证研究”, for 570,000 RMB.
  6. Two Papers Accepted in IEEE Intelligent Systems and CIKM 2020 (7/18/2020) - Our paper “Preserving User Privacy For Machine Learning: Local Differential Privacy or Federated Machine Learning? ” has been accepted for publish in IEEE Intelligent Systems. Our paper “OHEA: Secure Data Aggregation in Wireless Sensor Networks against Untrusted Sensors” has been accepted for publish in ACM CIKM 2020.
  7. IEEE Senior Membership (6/24/2020) - I was promoted to IEEE Senior Member.