摘要
给出了一种新的非精确线性搜索,说明了在新的线性搜索下每次迭代产生下降方向。证明了一种共轭梯度算法的全局收敛性。
The present article presents a new type of inaccurate linear contraction and interprets the downgrading direction produced by each iteration under the new linear contraction. At last a global astringency of conjugate gradient algorithm is proved.
出处
《贵阳学院学报（自然科学版）》
2008年第3期15-17,46,共4页
Journal of Guiyang University：Natural Sciences
关键词
共轭梯度法
线性搜索
下降方向
conjugate gradient algorithm
linear contraction
downgrading direction
