资源列表
ex_3_3
- 机器学习课后练习,对率回归程序,判断好瓜与坏瓜,包含西瓜测试数据。(Machine learning exercises after class, to rate regression procedure, judge good melon and bad melon.include test data)
bp
- 用多层前向网络的BP算法拟合函数 说明:1)网络结构为三层(输入层、1个隐层和输出层); 2)获取两组数据,一组作为训练集,一组作为测试集; 3)用训练集训练网络; 4)用测试集检验训练结果。(Fitting the function with BP algorithm of multilayer forward network)
PAT全套答案_1001至1049
- 该文档包含了PAT上的基础部分案例,可以参考一下(The document contains the basic part of the PAT case, you can refer to)
遗传算法
- 遗传算法是计算数学中用于解决最佳化的搜索算法,是进化算法的一种。进化算法最初是借鉴了进化生物学中的一些现象而发展起来的,这些现象包括遗传、突变、自然选择以及杂交等。(Genetic algorithm is used to solve optimization search algorithm in computational mathematics, is a kind of evolutionary algorithms.Evolutionary algorithm was original
tri-elements
- 本程序实现了一悬臂梁受力问题的有限元解法,采用三节点三角形单元,计算了梁端部受集中力和同时受均布荷载以及端部集中力两种情况,给出了计算结果并作出了变形图示(This program implements a cantilever beam finite element problem solution, using three node triangular element. Two cases: concentrated force and uniform load -concentrated
遗传算法案例
- 遗传算法通常实现方式为一种计算机模拟。对于一个最优化问题,一定数量的候选解(称为个体)的抽象表示(称为染色体)的种群向更好的解进化。(Genetic algorithms are usually implemented in a computer simulation. The abstract representation of a certain number of candidate solutions (called individuals) in an optimization pro
熵权法
- 按照信息论基本原理的解释,信息是系统有序程度的一个度量,熵是系统无序程度的一个度量;如果指标的信息熵越小,该指标提供的信息量越大,在综合评价中所起作用理当越大,权重就应该越高。(According to the basic principle of information theory, information is a measure of system order degree, and entropy is a measure of system disorder degree. If t
熵权法原理
- 熵权法是一种客观赋权方法。它十分复杂,计算步骤如下: a.构建各年份各评价指标的判断矩阵: b.将判断矩阵进行归一化处理, 得到归一化判断矩阵: c.根据熵的定义,根据各年份评价指标,可以确定评价指标的熵。 d.定义熵权。定义了第n个指标的熵后,可得到第n个指标的熵权。 f.计算系统的权重值。(Entropy weight method is an objective method of empowerment. It is very complicated. Th
flow_cylinder
- 》模块清晰,注释明了 》计算了圆柱的拉力系数,与现有文献吻合很好 》圆柱边界条件采用了两种,1 标准反弹;2 半步长反弹(1 Code is in a clear modular design with detailed comments. 2 Drag coefficient of cylinder wae computed agreed very well with the reference. 3 Standard and half-way bounce-back sche
Introduction FEM
- this code to introduce the finite element method
Cbeam
- This code to sole the cantilever beam
Crack.tar
- This code to solve the crack problem