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New Hybrid CG Algorithm Based on PR and FR Steps | ||
| AL-Rafidain Journal of Computer Sciences and Mathematics | ||
| Article 3, Volume 2, Issue 1, 2005, Pages 27-38 PDF (380.7 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.33899/csmj.2005.164065 | ||
| Authors | ||
| Abbas Y. Al-Bayati1; Khalil K. Abbo2; Asma M. Abdalah2 | ||
| 1College of Computer Sciences and Mathematics University of Mosul, Mosul, Iraq | ||
| 2College of Computers Sciences and Mathematics University of Mosul/Iraq | ||
| Abstract | ||
| In this paper, a new hybrid conjugate gradient algorithm is proposed for unconstrained optimization. This algorithm combines the desirable computation aspects of Polak-Ribière steps and useful theoretical features of Fletcher-Reeves CG-steps. Computational results for this algorithm are given and compared with those of the Fletcher and Polak standard CG methods showing a considerable improvement over the latter two methods. | ||
| Keywords | ||
| unconstrained Optimization; conjugate gradient algorithm; Polak-Ribière steps; Fletcher-Reeves steps | ||
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