activity
20232025
most citedFinite-Time Analysis of On-Policy Heterogeneous Federated Reinforcement Learning

1 citations · 1 across the 7 of their papers we have counts for

collaborators

7 papers

stat.ML2025

Personalized Collaborative Learning with Affinity-Based Variance Reduction

Chenyu Zhang, Navid Azizan

Multi-agent learning faces a fundamental tension: leveraging distributed collaboration without sacrificing the personalization needed for diverse agents. This tension intensifies w…

cs.LG2024

Stochastic Semi-Gradient Descent for Learning Mean Field Games with Population-Aware Function Approximation

Chenyu Zhang, Xu Chen, Xuan Di

Mean field games (MFGs) model interactions in large-population multi-agent systems through population distributions. Traditional learning methods for MFGs are based on fixed-point…

math.OC2024

Graphon Mean Field Games with a Representative Player: Analysis and Learning Algorithm

Fuzhong Zhou, Chenyu Zhang, Xu Chen +1

We propose a discrete time graphon game formulation on continuous state and action spaces using a representative player to study stochastic games with heterogeneous interaction amo…

cs.LG2024

A Single Online Agent Can Efficiently Learn Mean Field Games

Chenyu Zhang, Xu Chen, Xuan Di

Mean field games (MFGs) are a promising framework for modeling the behavior of large-population systems. However, solving MFGs can be challenging due to the coupling of forward pop…

cs.LG2024★ 1 cited

Finite-Time Analysis of On-Policy Heterogeneous Federated Reinforcement Learning

Chenyu Zhang, Han Wang, Aritra Mitra +1

Federated reinforcement learning (FRL) has emerged as a promising paradigm for reducing the sample complexity of reinforcement learning tasks by exploiting information from differe…

math.OC2023

Riemannian Adaptive Regularized Newton Methods with Hölder Continuous Hessians

Chenyu Zhang, Rujun Jiang

This paper presents strong worst-case iteration and operation complexity guarantees for Riemannian adaptive regularized Newton methods, a unified framework encompassing both Rieman…

math.OC2023

Riemannian Trust Region Methods for SC Minimization

Chenyu Zhang, Rufeng Xiao, Wen Huang +1

Manifold optimization has recently gained significant attention due to its wide range of applications in various areas. This paper introduces the first Riemannian trust region meth…