查询词典 descent method

This minimum is computed with the calculus of variations and the gradient descent method, which provide a system of evolution equations solved with the well-known level set method.

能量泛函的极小值由变分法求解，利用梯度下降法和水平集方法推倒演化方程。

So based on the characteristics of gradient descent method and layer by layer optimization method, we made some modifications and improvements on both of them.

本文就是针对梯度下降法和逐层优化法的特点，在现有算法的基础上，做了一些改进和修正。

Moreover, a new fast learning method of fuzzy systems both are based on genetic algorithms and gradient descent method is proposed.

引 言最近几年来，诸如模糊推理、模糊建模、模糊逻辑控制器等模糊系统得到了广泛的研究和应用。

Currently, the learning algorithms for training Feedforward Multilayer Neural Network can be classified into two categories: gradient descent method and layer by layer optimization method.

目前前向神经网络的学习算法主要分为两类：梯度下降算法和逐层优化算法。

Matlab optimization learning process: including the steepest descent method, golden section method, such as curve fitting.

详细说明：最优化学习的Matlab程序：包括最速下降法，黄金分割法，曲线拟合等。

Use of the steepest descent method Simulation of the adaptive filter equalizers, the method can be used to facilitate the achievement of hardware.

利用最陡下降法仿真实现了自适应滤波均衡器，该方法用硬件能方便实现。

This method keeps the advantages of steepest descent method and overcomes the phenomenon of zigzag, and thus increases convergence rate.

此方法既保持了最速下降法的优点，又消除了其锯齿现象，有效提高了计算速度，与其它有关的这一类算法相比，最佳方向法也显示出计算简单、占用计算机内存空间少和收敛速度快的优点。

The algorithm integrates 3D finite element performance analysis, steepest descent method with design sensitivity and mesh relocation method.

该算法将性能分析、最速下降法与灵敏度计算以及网格更新有效结合，构成集成化设计系统，并成功地用于电磁屏蔽钢板和变压器油箱屏蔽的最优形状设计。

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

This compression scheme can preserve the target information in infrared image better than BFGS Newton Method and Steepest Descent Method,and remarkably speed up the encoding process.

在相同代码长度的情况下本算法比BFGS牛顿法和最速下降算法更好地保留了红外图像中的目标信息，并且加快了编码速度。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。