steepest descent method是什么意思

网络释义

用法例句

A mixed method of conjugate gradient method and steepest descent method;

共轭梯度法和最速下降法的混合算法

The Modified Steepest Descent Method──Best Point in Steepest Descent method;

改进的最速下降法─最好点最速下降法

This paper presents the mathematical model for the optimization of heterogeneous components, and the method using sensitivity analysis and steepest descent method to optimize material properties, the component is then identified.

阐述了非均质材料零件设计优化的数学模型,并采用灵敏度分析以及最速下降法对其各个材料区域的材料性能进行设计优化,得到最佳材料性能参数后,再从非均质材料数据库中找到相应的工程材料,合成满足设计要求的非均质材料零件 该方法为设计者提供了切实可行的非均质材料零件的材料设计方

Bézier curve fitting based on genetic algorithm and steepest descent algorithm

基于遗传算法和最速下降法的Bézier曲线拟合

At the same time,the steepest descent algorithm is added into the whole algorithm,so that the calculation speed is improved for its speciality of converging into local min.

将隐层节点位置和相应的控制参数组成细菌,使RBFNN的两个参数同时得到优化;同时,在整体算法中融入最速下降法,利用其能快速收敛到极小点的特性,使算法速度得到提升。

Applying the steepest descent algorithm to work out the problem of system of nonlinear equations.

根据广东省台山市都斛镇水稻田控制排灌田间工程试验区的实测资料 ,探讨了在已定工作水头和输水管管径的条件下 ,不同出水口开启状况下各给水栓出流量的数学计算模型 ,用最速下降法计算非线性方程组的方法对这一数学模型进行了求解 ,并与实际观测情况进行了比较和分析 ,通过这些计算探索自动给水栓灌溉系统的设计方法 ,为这套灌溉系统在将来生产实践中的优化设计及应用打下理论基

This paper searches the nearest training data set as the training data sub-set in fault characteristics data space,and applies the steepest descent method(back-propagation) to optimizing the parameters of the fuzzy rules in the local model.

在故障特征数据空间中,搜索输入数据最相邻的训练数据作为子训练数据集,用最速下降法对模型模糊规则参数进行优化。

The learning method of hidden-output layer weights is the steepest descent method and the one of input-hidden layer weights is genetic algorithm(GA) .

该网络具有三层结构 ,隐层、输出层神经元激活函数分别为 :f(x) =xp 和线性函数 ;网络隐层 -输出层的权值采取最速下降法学习 ,输入层 -隐层的权值采用遗传算法进行学习 ;网络学习时 ,其误差函数单调递减 ,学习算法具有较好的收敛性 ;该网络能逼近任意的连续函数 ,且具有较好的稳定性。

Based on the steepest descent method and the conjugate gradient method,a hybrid algorithm is proposed in this paper,and its global convergence is proved.

将最速下降法与共轭梯度法有机结合起来,构造出一种混合优化算法,并证明其全局收敛性。

Separation is achieved by steepest descend method.

提出了一种新的线性混叠信号的盲分离算法,该算法利用信号相互独立时其协方差矩阵的对角化特征作为分离准则,采用最速下降法进行分离。

The paper puts forward a mutual approximation algorithm based on steepest descend method.

基于最速下降法的基本思想 ,提出了相互逼近算法 ,用以解决信贷风险决策过程中 ,利润曲线和风险曲线寻求公共最优近似解的问题 。

A hybrid iterative algorithm for unconstrained optimization problems is formulated by means of combining organically the steepest decent method and Newton method.

将最速下降法与Newton法有机地结合起来,构造了无约束优化问题的一种组合迭代算法,并证明了算法的全局收敛性。

Therefore one new algorithm(HOA,hybrid optimizing algorithm) was proposed which combines the Taylor series expansion method with steepest decent method.

在此基础上,提出一种混合优化算法(HOA,hybrid optimizing algorithm)将泰勒级数展开算法和最速下降法有机结合,扬长避短,既继承了泰勒级数展开算法的精确性和顽健性,又具备最速下降法迭代前期收敛速率快,计算量小的优点。

Considering the symmetric and positive of the discrete matrix, steepest decent method and preconditioned conjugate gradient method are used to solve the equation.

本文对一类四阶微分方程两点边值问题的Hermite有限元方法进行了研究,文章首先讨论了该方程通常意义下的Galerkin有限元离散,考虑到有限元离散得到的线性方程组的对称正定性,文中采用了预处理最速下降法和共轭梯度方法求解线性方程组,通过选择不同的预处理器,使得求解该方程组的迭代次数有了很大的改观。

Adaptive filter based on steepest descent method for fundamental extraction;

一种基于最速下降算法的基波提取自适应滤波器

Using steepest descent method to improve node localization accuracy of maximum likelihood estimation;

使用最速下降算法提高极大似然估计算法的节点定位精度

The Modified Steepest Descent Method──Best Point in Steepest Descent method

改进的最速下降法─最好点最速下降法

Bézier curve fitting based on genetic algorithm and steepest descent algorithm

基于遗传算法和最速下降法的Bézier曲线拟合

CONVERGENCE THEOREMS OF THE STEEPEST DESCENT METHOD FOR GENERALIZEDΦ-ACCRETIVE OPERATORS

关于广义Φ-增生算子的最速下降法的收敛定理

The path search using Steepest Descent Approach, the cross country path planning about fuzzy environment for an autonomous land vehicle is implemented.

最后用最速下降法进行路径搜索，实现了自主车在模糊环境下的越野路径规划。

An Inexact Steepest Descent Method for Finite Element Model Updating Problem

有限元模型修正问题的不精确最速下降迭代解

Convergence of Generalized Steepest Descent Approximation to Quasl-accretive Operators Equations

拟增生算子方程的广义最速下降逼近的收敛性

Research of Reducing Local Optimal Error of Fast Search Algorithms;

降低快速搜索算法中局部最优误差的研究

The maximum practical speed of electronic connections falls off quickly as cable lengths increase.

电子连接的最大实际速度会随著缆线长度的增加而快速下降。

Forecast of the Maximum Water Inflow in Mine Pits by Rise-Fall Ratio Method Under a Steady Environment

深降比法预测稳态环境下矿坑最大涌水量

a downhill racer.

快速下降的滑雪运动员

cant descending anti-overspeed device

悬臂下降超速限制器

Body weight and physical strength diminish rapidly.

体重和体力迅速下降。

By the time of young ear formation the decreasing rate was slowed down.

随后迅速下降,至幼穗形成期下降速率减缓。

Continuous reduction of power assistance as speed decreases, providing maximum power assistance when the vehicle is at rest (for manoeuvring, parking)

电动辅助转向力随车速降低而逐步降低，至汽车停下后（如调位或驻车）达到最大。

Prices have reached rock-bottom.

物价已下降到最低点.

Production has been lagging behind recently.

最近,生产一直在下降。

A New LMS Algorithm of Adaptive Filters--Modified Steepest Descent Method;

自适应滤波器的一种新LMS算法——改进的最陡下降法

Idle is rough, and high-speed miss and power loss may result.

导致怠速不稳，高速缺火和功率下降。