Publications

• Prelimit Coupling and Steady-State Convergence of Constant-stepsize Nonsmooth Contractive SA
  Yixuan Zhang, Dongyan (Lucy) Huo, Yudong Chen, Qiaomin Xie
  Operations Research, 2026
  Conference version accepted at ACM SIGMETRICS 2024
  (paper)
• Bias and Extrapolation in Markovian Linear Stochastic Approximation with Constant Stepsizes
  Dongyan (Lucy) Huo, Yudong Chen, Qiaomin Xie
  Mathematics of Operations Research, 2026
  Conference version accepted at ACM SIGMETRICS 2023
  (paper)
• A Piecewise Lyapunov Analysis of Sub-quadratic SGD: Applications to Robust and Quantile Regression
  Yixuan Zhang, Dongyan (Lucy) Huo, Yudong Chen, Qiaomin Xie
  ACM SIGMETRICS 2025
  (paper)
• The Collusion of Memory and Nonlinearity in Stochastic Approximation With Constant Stepsize
  Dongyan (Lucy) Huo, Yixuan Zhang, Yudong Chen, Qiaomin Xie
  Neural Information Processing Systems Conference (NeurIPS) 2024, Spotlight
  (paper)   (GitHub)
• Effectiveness of Constant Stepsize in Markovian LSA and Statistical Inference
  Dongyan (Lucy) Huo, Yudong Chen, Qiaomin Xie
  AAAI Conference on Artificial Intelligence (AAAI) 2024
  (paper)
• Decentralized Governance of Stablecoins with Closed Form Valuation
  Dongyan (Lucy) Huo, Ariah Klages-Mundt, Andreea Minca, Frederik Christian Münter, Mads Rude Wind
  International Conference on Mathematical Research for Blockchain Economy (MARBLE) 2022
  (paper)

Working Papers

• Asymptotic Product-Form Steady-State for Multi-Class Queueing Networks With SBP Service Policies in Multi-Scale Heavy Traffic
  Jim Dai, Dongyan (Lucy) Huo
  Major revision at Operations Research
  (paper)
  Companion paper:
  Asymptotic Product-form Steady-state for Multiclass Queueing Networks: A Reentrant Line Case Study
  (paper)

Projects

• Switch Scheduling via Reinforcement Learning
  Dongyan (Lucy) Huo, Yudong Chen, Jim Dai, Qiaomin Xie
  (GitHub)