Data-compatibility of algorithms
Abstract
The data-compatibility approach to constrained optimization, proposed here, strives to a point that is "close enough" to the solution set and whose target function value is "close enough" to the constrained minimum value. These notions can replace analysis of asymptotic convergence to a solution point of infinite sequences generated by specific algorithms. We consider a problem of minimizing a convex function over the intersection of the fixed point sets of nonexpansive mappings and demonstrate the data-compatibility of the Hybrid Subgradient Method (HSM). A string-averaging HSM is obtained as a by-product and relevance to the minimization over disjoint hard and soft constraints sets is discussed.
Cite
@article{arxiv.1911.11389,
title = {Data-compatibility of algorithms},
author = {Yair Censor and Maroun Zaknoon and Alexander J. Zaslavski},
journal= {arXiv preprint arXiv:1911.11389},
year = {2020}
}
Comments
Revised version, October 5, 2020, accepted for publication in: Journal of Applied and Numerical Optimization