collaborators

5 papers

math.OC2026

ProxSTORM -- A Stochastic Trust-Region Algorithm for Nonsmooth Optimization

Robert J. Baraldi, Aurya Javeed, Drew P. Kouri +1

We develop a stochastic trust-region algorithm for minimizing the sum of a Lipschitz-smooth but possibly nonconvex function and a convex but possibly nonsmooth function. Such a pro…

math.OC2026

Function-free Optimization via Comparison Oracles

Katya Scheinberg, Zikai Xiong

In this work, we study optimization specified only through a comparison oracle: given two points, it reports which one is preferred. We call it function-free optimization because w…

math.OC2026

High Probability Complexity Bounds of Trust-Region Stochastic Sequential Quadratic Programming with Heavy-Tailed Noise

Yuchen Fang, Javad Lavaei, Sen Na

In this paper, we consider nonlinear optimization problems with a stochastic objective and deterministic equality constraints. We propose a Trust-Region Stochastic Sequential Quadr…

math.OC2025

On Complexity of Model-Based Derivative-Free Methods

Abraar Chaudhry, Katya Scheinberg

In many applications of mathematical optimization, one may wish to optimize an objective function without access to its derivatives. These situations call for derivative-free optim…

math.OC2025

Stochastic Adaptive Optimization with Unreliable Inputs: A Unified Framework for High-Probability Complexity Analysis

Katya Scheinberg, Miaolan Xie

We consider an unconstrained continuous optimization problem where, in each iteration, gradient estimates may be arbitrarily corrupted with a probability greater than 1/2. Addition…