查询词典 descent method

The structural evolution properties of transition metal clusters containing from 13 to 60000 atoms are investigated by means of the Gupta potential combined with the steepest descent method. Four typical structural motifs are considered: icosahedron, decahedron, face centered cubic octahedron, and hexagonal close-packed.

采用Gupta原子间相互作用势结合最速下降法，对四种典型几何结构：Ih、Dh、Fcc-oct及Hcp，研究了尺寸介于13到60000个原子之间的同族元素Co、Rh与Ir团簇的结构演化特性。

In this paper, two kinds of learning methods of fuzzy systems are analyzed first,using genetic algorithm and the gradient descent method.

文中首先对模糊系统的两类主要的学习算法：梯度下降和遗传算法方法进行了深入分析，并指出了存在的问题。

In this paper, a new hybrid algorithm is proposed which is based on the combination of the steepest descent method with the artificial immune algorithm.

要的群体规模相对较大等因素的影响，本文将最速下降法与人工免疫算法结合，提出了一种新的混合算法。

Compiler Construction Principles of grammar analysis and semantic analysis, based on the recursive descent method.

详细说明：编译原理中的语法分析和语义分析，基于递归下降的方法。

An improved algorithm for image restoration was proposed based on Primal-Dual Hybrid Gradient Descent method.

对基于原—对偶混合梯度下降法的图像恢复算法进行了改进。

Based on linear equation constraints and steepest descent method, an adaptive algorithm is proposed for nonminimum phase FIR system identification.

摘要提出了一种基于线性代数方程组约束和梯度法的非最小相位FIR系统的自适应辨识算法。

The first steepest descent method will be extended to infinite-dimensional space.

首位将最速下降法推广到无穷维空间。

The normal hybrid genetic algorithms include genetic algorithm combined with steepest descent method and simulated annealing genetic algorithm.

常见的混合遗传算法有遗传算法与最速下降法相结合、遗传算法与模拟退火法相结合。

TMs paper presents the mathematical mod el for the optimization of heterogeneous components I an d the method using sensitivity analysis and steepest descent method to optimize material properties,the component is then identified.After searching for the materials from heterogeneous material database according to the corresponding optimum material data and combining the heterogene- OUS compo nents,the material is synthetized.

摘 要：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。

The first step is reviewing conventional methods of digital beam forming, including WINER method, Steepest-Descent method, LMS, RLS etc. Then , recent digital beam forming methods in the DS-CDMA mobile telecommunications systems are studied, including the algorithm based on least-squares despread respread Multi-Target array, least-squares Despread Respread Multi-Target Constant Modulus Array , Pilot bit LMS-DRMTA algorithm etc.

本文首先简介传统的DBF算法，包括维纳算法、最陡下降算法、最小均方算法、递归最小二乘算法等；然后介绍基于DS-CDMA移动通信系统的DBF算法，包括LS-DRMTA、LS-DRMTCMA导频LMS-DRMTA算法等；最后给出各种算法的仿真结果及分析。

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。