A New Conjugate Gradient for Unconstrained Optimization Based on Step Size of Barzilai and Borwein

Autor:	Salah G. Shareef, Alaa L. Ibrahim
Jazyk:	angličtina
Rok vydání:	2016
Předmět:	Unconstrained optimization Conjugate gradient Descent condition Sufficient descent condition Barzilai and Borwein step size Global convergence Science
Zdroj:	Science Journal of University of Zakho, Vol 4, Iss 1, Pp 104-114 (2016)
Druh dokumentu:	article
ISSN:	2663-628X 2663-6298
Popis:	In this paper, a new formula of is suggested for conjugate gradient method of solving unconstrained optimization problems based on step size of Barzilai and Borwein. Our new proposed CG-method has descent condition, sufficient descent condition and global convergence properties. Numerical comparisons with a standard conjugate gradient algorithm show that this algorithm very effective depending on the number of iterations and the number of functions evaluation.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/a2f9c11a097544848002df18b8ddd3c2 Zobrazit plný text záznamu View record in DOAJ