【摘要】 给出了一种新的求解无约束优化问题的混合共轭梯度算法,该算法的搜索方向下降性不依赖于任何线搜索条件,并在Wolfe-Powell线搜索条件下证明了该算法具有全局收敛性,同时还给出了比较好的数值结果。更多还原

【Abstract】 A new hybrid conjugate gradient formula for solving the unconstrained optimization problem is proposed.The corresponding method can guarantee that the search directions are descent directions without any line search,and this algorithm with the Wolfe-Powell line search is proved to be globally convergent.Preliminary numerical results show that the new hybrid conjugate gradient method is very efficient.更多还原