About me

Personal Introduction

I am currently a postdoctoral researcher at Mohamed bin Zayed University of Artificial Intelligence (MBZUAI) in the UAE, working with Prof. Ting Yu. My research focuses on privacy-preserving machine learning algorithms and synthetic data generation. Previously, I received my Ph.D. in Computer Science from the National University of Singapore (NUS) in 2025, where I was advised by Prof. Xiaokui Xiao. I obtained my B.Eng. in Information Security from the School of Computer Science at Shanghai Jiao Tong University (SJTU).

Publications

SaGD: A Node-Level Differentially Private Graph Learning Framework with Sensitivity-Aware Gradient Descent [PDF]
Jianxin Wei, Ergute Bao, Xiaokui Xiao, Ting Yu The ACM Web Conference (WWW) 2026, to appear.
GCON: Differentially Private Graph Convolutional Network via Objective Perturbation [PDF]
Jianxin Wei, Yizheng Zhu, Xiaokui Xiao, Ergute Bao, Yin Yang, Kuntai Cai, Beng Chin Ooi IEEE International Conference on Data Engineering (ICDE) 2025.
DPIS: an Enhanced Mechanism for Differentially Private SGD with Importance Sampling [PDF]
Jianxin Wei, Ergute Bao, Xiaokui Xiao, Yin Yang ACM Conference on Computer and Communications Security (CCS) 2022.
Data Synthesis via Differentially Private Markov Random Fields [PDF]
Kuntai Cai, Xiaoyu Lei, Jianxin Wei, Xiaokui Xiao International Conference on Very Large Data Bases (VLDB) 2021.

Education / Experience

Department of Computer Science, Mohamed bin Zayed University of Artificial Intelligence (MBZUAI)
Postdoctoral researcher, working with Ting Yu 2026
School of Computing, National University of Singapore (NUS)
Ph.D. in Computer Science, advised by Xiaokui Xiao 2020 – 2025
School of Computer Science, Shanghai Jiao Tong University (SJTU)
B.Eng. in Information Security 2016 – 2020

Professional Service

Conference Reviewer: VLDB 2026, ICDE 2026, CCS 2025, VLDB 2025, ICLR 2024, ICLR 2022, ICML 2022.

Teaching Service

NUS CS2102 Database Systems
NUS CS5339 Theory and Algorithms for Machine Learning
NUS CS5421/CS4221 Database Applications Design and Tuning

Awards

Research Achievement Award, National University of Singapore 2023, 2025
First Place, NIST Differential Privacy Temporal Map Challenge 2021
Second Place, NIST DeID2: A Better Meter Stick for Differential Privacy 2021
Second Prize, National College Student Information Security Contest, China 2019
Finalist (0.4%), Mathematical Contest in Modeling 2018
Excellent Student Scholarship (10%), Shanghai Jiao Tong University 2017, 2018, 2019
Siyuan First Prize Scholarship (3%), Shanghai Jiao Tong University 2017