A Line Search and Trust Region Algorithm with Trust Region Radius Converging to Zero

A Line Search and Trust Region Algorithm with Trust Region Radius Converging to Zero

Year:    2004

Author:    Jinyan Fan, Wenbao Ai, Qunying Zhang

Journal of Computational Mathematics, Vol. 22 (2004), Iss. 6 : pp. 865–872

Abstract

In this paper, we present a new line search and trust region algorithm for unconstrained optimization problem with the trust region radius converging to zero. The new trust region algorithm performs a backtracking line search from the failed point instead of resolving the subproblem when the trial step results in an increase in the objective function. We show that the algorithm preserves the convergence properties of the traditional trust region algorithms. Numerical results are also given.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2004-JCM-10290

Journal of Computational Mathematics, Vol. 22 (2004), Iss. 6 : pp. 865–872

Published online:    2004-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    8

Keywords:    Unconstrained optimization Trust region Line search.

Author Details

Jinyan Fan

Wenbao Ai

Qunying Zhang