About Me
I am currently an assistant lecturer at the School of Computing and Data Science at the University of Hong Kong (HKU). Before that, I received my PhD from the Department of Computer Science and Engineering at the Hong Kong University of Science and Technology (HKUST), supervised by Prof. YI, Ke. Prior to that, I received my B.Eng. degree in Computer Science from HKUST. My research interests include data privacy and security, and algorithms.
Teaching
As an assistant lecturer in HKU, I teach the following courses:
- COMP2119: Introduction to Data Structures and Algorithms (25 Fall)
- COMP2396: Object-Oriented Programming and Java (25 Fall)
As a Ph.D in HKUST, I assist in teaching the following courses:
- COMP2711: Discrete Mathematical Tools for Computer Science (21 Spring)
- COMP5711: Introduction to Advanced Algorithmic Techniques (21 Fall, 23 Fall)
Publications
- Juanru Fang and Ke Yi. "Counting Subgraphs under Shuffle Differential Privacy." ACM Conference on Computer and Communications Security (CCS), October 2025. [pdf]
- Wei Dong, Juanru Fang, Ke Yi, Yuchao Tao, and Ashwin Machanavajjhala. "Instance-optimal Truncation for Differentially Private Query Evaluation with Foreign Keys." ACM Transactions on Database Systems (TODS), 49(4):13, November 2024 (invited). [pdf]
- Jianzhe Yu, Wei Dong, Juanru Fang, Dajun Sun, and Ke Yi. "DOP-SQL: A General-purpose, High-utility, and Extensible Private SQL System." International Conference on Very Large Data Bases (VLDB), August, 2024. System demonstration.
- Juanru Fang and Ke Yi. "Privacy Amplification by Sampling under User-level Differential Privacy." ACM SIGMOD International Conference on Management of Data (SIGMOD), June 2024. [pdf]
- Juanru Fang, Wei Dong, and Ke Yi. "Shifted Inverse: A General Mechanism for Monotonic Functions under User Differential Privacy." ACM Conference on Computer and Communications Security (CCS), November 2022. [pdf]
- Wei Dong, Juanru Fang, Ke Yi, Yuchao Tao, and Ashwin Machanavajjhala. "R2T: Instance-optimal Truncation for Differentially Private Query Evaluation with Foreign Keys." ACM SIGMOD International Conference on Management of Data (SIGMOD), June 2022. [pdf] (Best paper award)
Awards
- 2023 HKUST RedBird Academic Excellence Award.
- 2022 ACM SIGMOD Best Paper Award.
- 2020 Hong Kong PhD Fellowship Scheme.
- 2020 HKUST RedBird PhD Award.
- 2018 Bronze Medal at ICPC Asia Hong Kong Regional Contest.
- 2017 HKUST Scholarship for Continuing Undergraduate Students.