摘要: |
基于已有的共轭梯度法的思想,提出了一个三项LS共轭梯度方法,该方法能保证搜索方向在不需要任何线搜索下具有充分下降性,并在适当条件下获得此方法对一般函数的全局收敛性. |
关键词: 共轭梯度法 充分下降性 全局收敛性 |
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A Modified Three term LS Conjugate Gradient mMethod |
JIAO Jia jia
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Abstract: |
Based on the existent ideas of the conjugate gradient method, this paper proposes a three term LS conjugate gradient method. The presented method can make the search direction with sufficient descent property without any line search. Under certain mild conditions, global convergence is obtained. |
Key words: Three term Conjugate Gradient Method sufficient descent property global convergence |