2 papers
math.OC2026
Powell-Style Model-Based Derivative-Free Optimization with Complexity Guarantees
Abraar Chaudhry, Katya Scheinberg, Scholar Sun
We propose variants of model-based trust region derivative-free algorithms that are closest to methods initially proposed and implemented by Powell. These methods rely on low degre…
math.OC2025
On the computation of the cosine measure in high dimensions
Warren Hare, Scholar Sun
In derivative-free optimization, the cosine measure is a value that often arises in the convergence analysis of direct search methods. Given the increasing interest in high-dimensi…