查询词典 falling gradient

Now, the rapid development of computer and occurrence of a great deal of large-scale optimization problems make the researches in conjugate gradient method revive.

近年来，随着计算机的飞速发展和实际问题中大规模优化问题的涌现，寻找快速有效的共轭梯度法成为了学者们研究的热门方向之一。

Some methods are direct in principle but are usually used as though they were not, e.g. GMRES and the conjugate gradient method .

有些方法是直接在原则上，但通常用作但他们没有，例如： GMRES方法和共轭梯度法。

Regarding to this inverse problem, it is solved by the conjugate gradient method for the stable solution and quick convergence.

在反演求解时，使用共轭梯度算法，以保证求解的稳定性，加快解的收敛速度。

Conjugate gradient method, the use of Newton's law or the use of parabolic interpolation.

共轭梯度法，使用牛顿法或者使用抛物线插值法。

According to the filter matrix particularity, the filter equation was solved by using conjugate gradient method.

并根据滤波矩阵的特殊性，釆用共轭梯度法求解滤波方程。

And it is solved by using the conjugate gradient method, in which the calculation precision is almost the same as that in the SVD method.

最后通过对模拟数据和实测数据进行反演试算，验证本计算方法是可行的。

Optimization of the use of punitive factor function in the epitaxial sustaining a conjugate gradient method...

最优化中利用惩罚因子的罚函数法的外延，连带了共轭梯度法，由于罚因子的迅速跌代增大，加速了目标函数的收敛速度。

A hybrid ANN-Lagrangian relaxation approach for generating unit commitment , and for the disadvantages of BP algorithm, a new conjugate gradient algorithm without line searches is used to speed up convergemce.

混合ANN和Lagrange松弛法用于解机组最优投入问题，并针对BP算法不足，利用一种不用精确搜索的共扼梯度训练算法，加速了网络的收敛。

In this dissertation, we presented the global convergence properties of nonlinear conjugate gradient methods without line search and with strong Wolfe conditions, Goldstein inexact line search.

本文给出了无约束最优化算法—非线性共轭梯度法在不需线搜索和用强Wolfe条件下以及用Goldstein非精确线搜索产生搜索步长情况下的全局收敛性证明。

Nonlinear Conjugate Gradient Method; Line Search; Sufficient Descent Direction; Global Convergence

基础科学，数学，运筹学非线性共轭梯度法；线性搜索；充分下降方向；全局收敛性

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？