Research

Last Updated - 2025 August

Working Papers

* = corresponding author

  • Du Chen, Youhua (Frank) Chen, Geoffrey A. Chua. Design and Analysis of Algorithms for Privacy-Aware Online Allocation under Heterogeneous Privacy Expectations
    In final preparation for submission to Operations Research. Manuscript available upon request.

  • Du Chen, Geoffrey A. Chua, Victor Richmond R. Jose*. Joint Differential Privacy for Resource Allocation: Protection Capability, Price of Privacy, Algorithm Design, and Policy Implications [Preprint]
    Under 2nd-round review at Management Science
    🏆 Winner: Singapore Rising Scholars Conference 2025 Best Paper Award

  • Du Chen, Geoffrey A. Chua*. An Algorithmic Approach to Managing Supply Chain Data Security: The Differentially Private Newsvendor [Preprint]
    Under Minor Revision at Operations Research

Publications

  • Du Chen*, Geoffrey A. Chua. Exploiting Hidden Symmetry to Improve Objective Perturbation for DP Linear Learners with a Nonsmooth L1-Norm [Paper]
    The Thirteenth International Conference on Learning Representations (ICLR 2025)

  • Du Chen*, Geoffrey A. Chua. Noisy Dual Mirror Descent: A Near Optimal Algorithm for Jointly-DP Convex Resource Allocation [Paper]
    The Thirty-eighth Annual Conference on Neural Information Processing Systems (NeurIPS 2024)

  • Du Chen*, Geoffrey A. Chua. Differentially Private Stochastic Convex Optimization under a Quantile Loss Function [Paper]
    Proceedings of the 40th International Conference on Machine Learning (ICML 2023)

Publications prior to my Ph.D. can be found here.

Research Grants

I have drafted some research grant proposals on privacy-aware operations

  • Managing Data Security in Supply Chains: Algorithmic Approaches and Economic Implications
    PI: Geoffrey A. Chua
    The Ministry of Education Singapore, Academic Research Fund, Tier 1, Grant No. RG117/23, 2024-2027

Professional Service

Reviewer for:

  • ICLR (2025)
  • NeurIPS (2025)