the convergence theorem of a class of conjugate gradient algorithms is proven, which extend the main convergence theorem in gilbert and noceda ( 1992 ) 讨论了一类共轭梯度算法的收敛性,推广了1992年gilbert和nocedal的收敛性结果。
based on the papers [ 10 ] and [ 19 ], we propose a new nonmonotone conjugate gradient algorithm, prove its convergence and test the new nonmonotone algorihm 基于文献[10]和[19],我们提出了一种新的非单调共轭梯度算法,证明了新算法的收敛性,并对它进行了测试。
6 . a mixed hs-fr conjugate gradient algorithm is proposed . two convergence theorems without the sufficient descent condition for the mixed hs-fr algorithm are given 给出了一个混合的hsfr共轭梯度算法,在无充分下降条件下,得到了关于hsfr算法的两个收敛性定理。
at last, the projected gradient algorithm is used in the cdma maximum likelihood multiuser detection . the experiment shows that the method is a good method for the cdma 最后把投影梯度算法用于求解多用户检测问题,仿真实验表明该方法是求解多用户检测问题的一个很好的方法
compared with other algorithms, the first-order gradient algorithms and the neighboring extremal algorithms are adopted to resolve tpbvp, at the same time we found out the relation between them 在比较各种解法基础上,最终具有方向性地研究了梯度法和邻近极值法,并找到了二者之间的联系。