摘要
基于1999年戴和袁提出的经典的DY共轭梯度法,提出了一类修正的DY方法,并证明该方法在步长满足Wolfe线搜索的条件下,其搜索方向具有下降性,同时对一般函数具有全局收敛性。
A class of modified DY Conjugate gradient methods are proposed based on DY conjugate gradient methods proposed by Dai and Yuan in 1999. The search direction of the methods are proved to possess descent property when step length satisfies the Wolfe line search conditions,and the methods are global convergence to the general function.
作者
陈恩
CHEN En(School of Mathematics Science, Chongqing Normal University, Chongqing 401331, Chin)
出处
《重庆理工大学学报(自然科学)》
CAS
北大核心
2018年第2期213-217,共5页
Journal of Chongqing University of Technology:Natural Science
基金
重庆市自然科学基金重点项目(cstc2015jcyj BX0029)