本文提出了一类求解无约束优化问题的修正的HS共轭梯度法.该算法每步都可产生一个充分下降方向,并且在适当条件下,证明该算法在非精确搜索下全局收敛.最后通过数值试验结果表明该算法的有效性.
A modified HS conjugate gradient method for unconstrained optimization is proposed,which generates automatically a sufficient descent direction.Global convergence of new method under inexact line search is proved.The numerical results show that the new technique works well for the given nonlinear optimization test problems.