摘要
该文用双梯度矢量构造了一种新的迭代方法─— 加速梯度法,并对其收敛稳定性进行了证明。由于其不涉及Hessian矩阵,加速搜索方向仅用两点梯度表示,因而该方法不仅收敛速度快,而且具有结构简单、计算量少、适应性广等优点。
In this paper,a new iterative method- accelerated gradient method is put forward by using two gradient vectors,As Hessian matrix is not involved in and the acceler-ated direction is obtained only with two point vectors,it has advantages of simpler form,less quantity of calculation and wider adaptability。
出处
《南京理工大学学报》
CAS
CSCD
1995年第5期417-420,共4页
Journal of Nanjing University of Science and Technology
关键词
非线性规划
迭代法
梯度算法
nonlinear programming,Iteration methods,Gradient algorithms