A Spectral Dai-Yuan-Type Conjugate Gradient Method for Unconstrained Optimization

Guanghui Zhou and Qin Ni

Mathematical Problems in Engineering, 2015, vol. 2015, 1-7

Abstract:

A new spectral conjugate gradient method (SDYCG) is presented for solving unconstrained optimization problems in this paper. Our method provides a new expression of spectral parameter. This formula ensures that the sufficient descent condition holds. The search direction in the SDYCG can be viewed as a combination of the spectral gradient and the Dai-Yuan conjugate gradient. The global convergence of the SDYCG is also obtained. Numerical results show that the SDYCG may be capable of solving large-scale nonlinear unconstrained optimization problems.

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:839659

DOI: 10.1155/2015/839659

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