I am Kai Chen, a third-year PhD student in Computer Science at the University of Virginia, advised by Dr. Tianhao Wang. I obtained my Bachelorโ€™s degree in Mathematics and Applied Mathematics at Zhejiang University, and earned a double major in Finance. I received my Masterโ€™s degree in Statistics with Data Science from the University of Edinburgh. Before starting my PhD studies, I spent about one and a half years working at ByteDance as a Data Analyst. In 2026, I was a Student Researcher at Google Research.

My research interests include differential privacy, generative AI, and AI security. I actively welcome any collaborators. If you are interested in differential privacy and its applications in data generation, please donโ€™t hesitate to contact me.

๐Ÿ”ฅ News

  • 2026.08: ย ๐ŸŽ‰๐ŸŽ‰ Our work Beyond One-Size-Fits-All: Neural Networks for Differentially Private Tabular Data Synthesis is accepted to CCS 2026.
  • 2026.05: ย  I join Google Research (Seattle) as a Student Researcher, leading a project on differentially private data insights.
  • 2025.08: ย ๐ŸŽ‰๐ŸŽ‰ Our work Benchmarking Differentially Private Tabular Data Synthesis is accepted to SIGMOD 2026.
  • 2025.04: ย ๐ŸŽ‰๐ŸŽ‰ Our work Benchmarking Differentially Private Tabular Data Synthesis is presented at ICLR Workshop 2025.
  • 2024.08: ย  I start my research in the University of Virginia, under the supervision of Dr. Tianhao Wang.

๐Ÿ“– Educations

  • 2024.08 - (now), Ph.D. in Computer Science, University of Virginia
  • 2020.09 - 2021.08, M.S. in Statistics with Data Science, University of Edinburgh
  • 2016.09 - 2020.06, B.S. in Mathematics and Applied Mathematics & B.S. in Finance, Zhejiang University

๐Ÿ“ Publications

SHIP: Structured and Hierarchical Insight with Privacy (ArXiv Preprint)

K Chen, G Ni, A Cheu, K Fawaz, Y Hu, R McKenna, P Kairouz

Paper


Differentially Private Paired Table-Image Multimodal Synthesis (ArXiv Preprint)

K Chen, J Lamp, S Jha, T Wang

Paper


MRMMIA: Membership Inference Attacks on Memory in Chat Agents (ArXiv Preprint)

K Chen, Y Pang, T Wang

Paper


Beyond One-Size-Fits-All: Neural Networks for Differentially Private Tabular Data Synthesis (CCS 2026)

K Chen, C Gong, T Wang

Paper Code

Margnet


Benchmarking Differentially Private Tabular Data Synthesis (SIGMOD 2026; ICLR Workshop 2025)

K Chen, X Li, C Gong, R McKenna, T Wang

Paper Workshop Paper Code

Benchmarking DP Tabular


Maximizing Time-aware Welfare for Mixed Items (ICDE 2022)

X Miao, H Peng, K Chen, Y Peng, Y Gao, J Yin

Paper

๐Ÿ’ป Experience

  • 2026.05 - 2026.09, Student Researcher, Google Research, Seattle, US. Led the private data insight project (SHIP).
  • 2021.12 - 2023.05, Data Analyst, ByteDance, Shanghai, China. Douyin relation & privacy group.

๐Ÿ“š Service

  • Reviewer @TDSC 2025
  • Reviewer @VLDB Journal 2025
  • Artifact Reviewer @SIGMOD 2025