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4
说明： Essential Matlab for engineers and scientists
- 2011-03-10 22:32:56下载
- 积分：1
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jing_dct
没有用工具箱的DCT变换，采用不同压缩率，能够加深对DCT变换的了解。(Do not use toolbox of DCT, using different compression ratios, to deepen understanding of the DCT transform.)
- 2012-01-11 19:49:26下载
- 积分：1
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Addition
addition of two sequences in matlab
- 2010-10-18 00:34:10下载
- 积分：1
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FIRFilterdesign
FIR filter design with unseperable window, seperable window, frequency sampling method
- 2009-05-03 00:52:24下载
- 积分：1
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切比雪夫
通过给定天线阵列的参数，计算出切比雪夫馈电电流分布，并计算出方向图(By giving the parameters of the antenna array, the current distribution of the Chebyshev feed current is calculated and the direction map is calculated.)
- 2018-05-30 15:18:19下载
- 积分：1
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a
说明： 决策树(Decision Tree）是在已知各种情况发生概率的基础上，通过构成决策树来求取净现值的期望值大于等于零的概率，评价项目风险，判断其可行性的决策分析方法，是直观运用概率分析的一种图解法。由于这种决策分支画成图形很像一棵树的枝干，故称决策树。在机器学习中，决策树是一个预测模型，他代表的是对象属性与对象值之间的一种映射关系。Entropy = 系统的凌乱程度，使用算法ID3, C4.5和C5.0生成树算法使用熵。这一度量是基于信息学理论中熵的概念。
决策树是一种树形结构，其中每个内部节点表示一个属性上的测试，每个分支代表一个测试输出，每个叶节点代表一种类别。
分类树（决策树）是一种十分常用的分类方法。它是一种监督学习，所谓监督学习就是给定一堆样本，每个样本都有一组属性和一个类别，这些类别是事先确定的，那么通过学习得到一个分类器，这个分类器能够对新出现的对象给出正确的分类。这样的机器学习就被称之为监督学习。(Decision tree is a decision analysis method based on the known probability of occurrence of various situations, which can calculate the probability that the expected value of net present value is greater than or equal to zero, evaluate the project risk and judge its feasibility by constructing a decision tree. It is a graphic method of intuitively using probability analysis. Because this kind of decision branch is drawn as a graph, it is very similar to the branch of a tree, so it is called decision tree. In machine learning, decision tree is a prediction model, which represents a mapping relationship between object attributes and object values. Entropy = the disorder degree of the system, using algorithms ID3, C4.5 and C5.0, spanning tree algorithm using entropy. This measure is based on the concept of entropy in information theory.)
- 2021-02-01 15:02:09下载
- 积分：1
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matlab-random
一个100*100的正方形，用半径为10的圆覆盖，随机在100*100的平面内放置圆心，问至少需要多少个圆，才能使得成功覆盖整个区域的概率在95 以上？并给出一个均匀随机放置装置的分布图。(A 100* 100 square, a circle with a radius of 10 covers, 100* 100 randomly placed on the center plane, and asked how many circles at least, to cover the entire area so the probability of success of 95 or more? And gives a uniform distribution of randomly placed devices.)
- 2011-04-29 11:29:45下载
- 积分：1
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moshishibie_10454980
我从网上下的模式识别的书籍，非常好，现共享一下(I recognize the pattern from the Internet of books, very good, is about sharing)
- 2011-09-16 07:32:34下载
- 积分：1
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ShutDown
SYSTEM SHUTDOWN Process
- 2015-01-29 14:34:32下载
- 积分：1
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Ant-colony-algorithm-Matlab-program
无约束连续函数优化的人工蚁群算法通用MATLAB源码
(The general MATLAB source of unconstrained artificial ant colony algorithm for continuous function optimization)
- 2013-05-20 11:04:49下载
- 积分：1
