查询词典 gradient

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

In the first section, we introduce the development of the conjugate gradient methods.

在第一部分中我们介绍了共轭梯度法的发展过程及其研究现状。

So in this paper, we introduce the multi-grid algorithm and conjugate gradient algorithm to solve this system.

为说明该方法的优点，最后对用这两种方法处理的超声医学图像的收敛曲线和平滑结果进行了比较

In comparison with classic conjugate gradient methods, the decrease of objective function is contained in the two new methods.

与经典的共轭梯度法的区别是新方法中体现了函数值下降量的信息。

Diversification effect is the key to the economic capital allocation, the consistency of principle Meeting no undercut and the corresponding gradient method was introduced to the economic capital allocation; the residual risk based on the risk and cost also was introduced to the allocation of economic capital.

组合效应是经济资本配置的关键，满足无缩减性的一致性原则及相应的梯度法被引入到经济资本配置的研究中；基于风险和成本相统一的风险残余法也被引入到经济资本配置的研究。

The constant of proportionality between the diffusion flux and the concentration gradient in Fick's first law.

Fick第一定律中，扩散通量和浓度梯度之间的比例系数。其量级表示了原子扩散的速度。

Continuously improve the production mechanism, to provide customers with better quality products and services.

不断的完善生产机制，给客户提供更优质的产品及服务。

B:Yes, he was the very prize-winner in the court tennis ten years ago?

是的，他是十年前的世界网球冠军。