Joann Qiongna Chen

Hi, I’m Joann. I’m a 5th year Ph.D. student at University of California, Irvine advised by Prof. Zhou Li. My research interests center around Differential Privacy (DP), privacy-enhancing technologies, and privacy in machine learning. I have experience in working on differentially private DNS resolution, DP for data stream release, differentially private resource allocator, and quantifying privacy risks in machine learning. I serve in a leadership role at the Society of Graduate Electrical Engineers and Computer Scientists (GEECS) at UC Irvine.

Publications

A Comprehensive Study of Privacy Risks in Curriculum Learning. arXiv:2310.10124.
Joann Qiongna Chen
, Xinlei He, Zheng Li, Yang Zhang, Zhou Li. 

Differentially Private Resource Allocator. Accepted by the 39th Annual Computer Security Applications Conference (ACSAC), December 2023. & Theory and Practice of Differential Privacy (TPDP) Workshop, 2023.
Joann Qiongna Chen, Tianhao Wang, Zhikun Zhang, Yang Zhang, Somesh Jha, Zhou Li. 

Hide and Seek: Revisiting DNS-based User Tracking. Accepted by 7th IEEE European Symposium on Security and Privacy (EuroS&P), June 2022.
Deliang Chang*, Joann Qiongna Chen*, Zhou Li, Xing Li.  

Continuous Release of Data Streams under both Centralized and Local Differential Privacy. Accepted by the 28th ACM Conference on Computer and Communications Security (CCS), Virtual, November 2021.
Tianhao Wang, Joann Qiongna Chen, Zhikun Zhang, Dong Su, Yueqiang Cheng, Zhou Li, Ninghui Li, Somesh Jha. 

From WHOIS to WHOWAS: A Large-Scale Measurement Study of Domain Registration Privacy under the GDPR. In Proceedings of the 28th Annual Network and Distributed System Security Symposium (NDSS), Virtual, February 2021.
Baojun Liu, Chaoyi Lu, Yiming Zhang, Zhou Li, Fenglu Zhang, Haixin Duan, Ying Liu, Joann Qiongna Chen, Jinjin Liang, Zaifeng Zhang, Shuang Hao, Min Yang. 

Splitting Algorithm of Valuation Algebra and Its Application in Automaton Representation of Semiring Valued Constraint Problems. Quantitative Logic and Soft Computing 2016 Springer, Cham, 2017. 203-212.
Bang-He Han, Yong-Ming Li, Joann Qiongna Chen

*First two authors contributed equally to this work.

Professional Experience

Meta Reality Labs Research                                                                                                09/2022 – 01/2023
Part-time Student Researcher (Advisor: Deeksha Dangwal)

Meta Reality Labs Research                                                                                               06/2022 – 06/2022
Research Scientist Intern (Advisor: Deeksha Dangwal)

CISPA Helmholtz Center for Information Security                                                         07/2021 – 09/2021
Research Intern (Advisor: Yang Zhang)

Talks/ Presentations

Differentially Private Resource Allocator                                                                                          03/2022
Microsoft Research Redmond Cryptography and Privacy Colloquium

Continuous Release of Data Streams under both Centralized and Local Differential Privacy
The 28th ACM Conference on Computer and Communications Security (CCS)                                
11/2021