Chen Xu

works on

adversarial attacks 1 homotopy 1 non-convex optimization 1 smoothing 1 zeroth-order optimization 1

From the 1 of 6 linked papers with an AI index.

activity

20242026

collaborators

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3 papers · 1 filter

math.OC2026

Power Homotopy for Zeroth-Order Non-Convex Optimizations

Chen Xu

The paper introduces GS-PowerHP, a homotopy-based method that gradually reduces the Gaussian smoothing radius to improve exploration and refinement in zeroth-order non-convex optim…

math.OC2026

Progressive Power Homotopy for Non-convex Optimization

Chen Xu

We propose a novel first-order method for non-convex optimization of the form $max_{w \in R^{d}} E_{x \sim D} [f_{w} (x)]$ , termed Progressi…

math.OC2024

Global Optimization with A Power-Transformed Objective and Gaussian Smoothing

Chen Xu

We propose a novel method that solves global optimization problems in two steps: (1) perform a (exponential) power- $N$ transformation to the not-necessarily differentiable objectiv…