most citedFrom Stability to Chaos: Analyzing Gradient Descent Dynamics in Quadratic Regression

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math.OC2024

Problem-Parameter-Free Decentralized Nonconvex Stochastic Optimization

Jiaxiang Li, Xuxing Chen, Shiqian Ma +1

Existing decentralized algorithms usually require knowledge of problem parameters for updating local iterates. For example, the hyperparameters (such as learning rate) usually requ…

math.OC2023

Stochastic Nested Compositional Bi-level Optimization for Robust Feature Learning

Xuxing Chen, Krishnakumar Balasubramanian, Saeed Ghadimi

We develop and analyze stochastic approximation algorithms for solving nested compositional bi-level optimization problems. These problems involve a nested composition of poten…