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Mohammad Esmael Samei

Mohammad Esmael Samei

Academic rank: Associate Professor
ORCID: 0000-0002-5450-3127
Education: PhD.
ScopusId: 55938219900
HIndex: 23/00
Faculty: Faculty of Science
Address: Department of Mathematics, Faculty of Science, Bu-Ali Sina University, Hamedan, Iran
Phone: 08131406263

Research

Title
On q-Hestenes-Stiefel Conjugate Gradient Method for nconstrained Optimization Problems
Type
Presentation
Keywords
unconstrained optimization, conjugate gradient method, global convergence
Year
2020
Researchers Shashi Kant Mishra ، Mohammad Esmael Samei ، Bhagwat Ram

Abstract

The conjugate gradient (CG) algorithm is one of the most popular algorithms for solving nonlinear unconstrained optimization problems. The Hestenes-Stiefel (HS) conjugate gradient formula is relatively one of the most efficient methods developed in this century. In addition, the (HS) coefficient has the conjugacy condition regardless of the line search method used. In this paper, we use the original HS CG formula with q-gradient to construct a q-HS method. The convergence and q-descent descent with the strong Wolfe and standard Wolfe line searches are established. Due to the advantage of q-gradient, the search process starts from global at the beginning and reaches to local. Numerical results illustrate the efficiency of algorithm