广西科学2008,Vol.15Issue(1):14-19,6.
基于PRP和HS公式产生的一个共轭梯度公式
A Conjugate Gradient Formula Generated by PRP and HS Formulas
摘要
Abstract
With the similarity of the form between PRP and HS for mulas which have the same numerator and different denominators,and proper combining and composing,a new conjugate gradient formula is obtained.The present method based on this for mula possesses a sufficient descent property with the strong Wolfe Powell line search.Under some suitable assumptions and the weak WolfePowell line search,the global convergence result is established.The preliminary numerical results show that the proposed method is efficient.关键词
无约束优化/共轭梯度法/Wolfe-Powell条件/全局收敛Key words
unconstrained optimization/conjugate gradient method/Wolfe Powell conditions/global convergence分类
数理科学引用本文复制引用
陈翠玲,赵岩..基于PRP和HS公式产生的一个共轭梯度公式[J].广西科学,2008,15(1):14-19,6.基金项目
Supported by the Natural Science Foundation of China (10161002), the Natural Science Foundation of Guangxi Province (0542043) and the Youth Foundation of Guangxi Normal University. (10161002)