肖纳川

助理教授

教育背景

中国科学院数学与系统科学研究院博士

复旦大学学士

学术领域
计算机科学, 机器学习与人工智能, 运筹学, 优化算法
研究领域
约束优化、非光滑优化、随机优化
个人网站
https://xnchxy.github.io/
电子邮箱
xncxy@cuhk.edu.cn
办公室
综合楼B614
个人简介

肖纳川博士现任香港中文大学（深圳）数据科学学院助理教授。他于2021年在袁亚湘教授指导下获得中国科学院数学与系统科学研究院博士学位。此后，他加入新加坡国立大学运筹学与分析研究所，在Kim-Chuan Toh教授指导下担任博士后研究员。他的研究方向为最优化计算方法，特别专注于开发求解非凸约束优化问题的高效数值方法。他的研究成果发表在优化和机器学习领域的顶级期刊上，包括SIAM Journal on Optimization、Mathematics of Operations Research、Journal of Machine Learning Research、Mathematical Programming Computation以及IMA Journal of Numerical Analysis。

学术著作

  1. X. Hu, N. Xiao*, X. Liu, K.-C. Toh, "Learning-rate-free momentum SGD with reshuffling converges in nonsmooth nonconvex optimization", Journal of Scientific Computing 102(85), 2025

  2. N. Xiao, X. Hu*, X. Liu, K.-C. Toh, "CDOpt: a Python package for a class of Riemannian optimization", Mathematical Programming Computation 1-58, 2025

  3. T. Tang, K.-C. Toh, N. Xiao*, Y. Ye, "A Riemannian dimension-reduced second order method with application in sensor network localization", SIAM Journal on Scientific Computing 46(3) A2025-A2046, 2024

  4. X. Liu, N. Xiao*, Y.-x. Yuan, "A penalty-free infeasible approach for a class of nonsmooth optimization problems over the Stiefel manifold", Journal of Scientific Computing 99(30), 2024

  5. N. Xiao, X. Hu*, X. Liu, K.-C. Toh, "Adam-family methods for nonsmooth optimization with convergence guarantees", Journal of Machine Learning Research 25(48) 1-53, 2024

  6. X. Hu, N. Xiao*, X. Liu, K.-C. Toh, "A constraint dissolving approach for nonsmooth optimization over the Stiefel manifold", IMA Journal of Numerical Analysis, drad098, 2023

  7. X. Hu, X. Liu, N. Xiao*, "Convergence properties of stochastic proximal subgradient method in solving a class of composite optimization problems with cardinality regularizer", Journal of Industrial and Management Optimization 20(5) 1934-1950, 2024

  8. N. Xiao, X. Liu, K.-C. Toh*, "Dissolving constraints for Riemannian optimization", Mathematics of Operations Research 49(1) 366-397, 2024

  9. N. Xiao, X. Liu*, "Solving optimization problems over the Stiefel manifold by smooth exact penalty function", Journal of Computational Mathematics (to appear), 2024+

  10. X. Hu, N. Xiao*, X. Liu, K.-C. Toh, "An improved unconstrained approach for bilevel optimization", SIAM Journal on Optimization 33(4) 2801-2829, 2023

  11. N. Xiao, X. Liu*, Y.-x. Yuan, "A class of smooth exact penalty function methods for optimization problems with orthogonality constraints", Optimization Methods and Software 37(4) 1205-1241, 2022

  12. N. Xiao, X. Liu*, Y.-x. Yuan, "Exact penalty function for L21​-norm minimization over the Stiefel manifold", SIAM Journal on Optimization 31(4) 3097-3126, 2021