UPOQA exploits partial separability by building individual quadratic models with per-element trust regions and an approximate 'Steinmetz projection', cutting function evaluations versus baselines in numerical tests.
Berahas, Liyuan Cao, Krzysztof Choromanski, and Katya Scheinberg
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A Model-Based Derivative-Free Optimization Algorithm for Partially Separable Problems
UPOQA exploits partial separability by building individual quadratic models with per-element trust regions and an approximate 'Steinmetz projection', cutting function evaluations versus baselines in numerical tests.