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2sphere2D
基于时域有限差分法（FDTD），用MATLAB编程计算双球金纳米颗粒的局域电磁场增强(二维)的程序||2sphere2D.m(Base on FDTD ,local field enhancement of gold double sphere nanoparticles（2D）by Matlab || 2sphere2D.m)
- 2014-01-06 21:08:42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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DigitalBaseband
数字基带传输的全部matlab仿真文件，测试无误，升余弦滚降滤波器(Digital baseband transmission matlab simulation of all documents, test passed, raised cosine roll-off filter)
- 2010-03-06 20:30:26下载
- 积分：1
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yixiangganshetuchuli
说明： 四幅移相干涉图的处理程序，相位提取，基本方法接包裹程序。正在学习的同志请下载。(Four phase-shifting the processing of interferograms, phase extraction, the basic method of access package program. Please download the comrades are learning.)
- 2010-04-08 02:30:50下载
- 积分：1
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zuoye_chapter4_1_interpolation
计算方法中，拉格朗日插值法的源代码。在最后，绘出了拉格朗日插值法的图像和原图像的比较。原创。(Calculation method, Lagrange interpolation source code. In the end, draw a comparison image and the original image Lagrange interpolation. Original.)
- 2013-12-08 17:11:28下载
- 积分：1
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Slide_Matlab_CN_BI
boost environment to apply time sync files all ready
- 2010-09-10 17:55:44下载
- 积分：1
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white_noise_data
白色噪声的生成数据,自己编写,可以直接使用(The white noise generated data, write your own, you can directly use)
- 2009-11-28 21:39:18下载
- 积分：1
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radon
this is the source code for the radon transform. it is the c file. u have to save this file as c file and then compile it using mex compiler in matlab.
- 2011-09-23 16:55:26下载
- 积分：1
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CAD-sim-control-system-MATLAB
《控制系统CAD与仿真-MATLAB语言及应用》(CAD and simulation of the control system--MATLAB language and its application.)
- 2014-01-21 16:14:25下载
- 积分：1
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guhang0100
1支持JUBB(类似UBB) 2留言数据的合法性检测,如EMAIL,主页地址 3支持繁体字符的输入 4出错页面美化 初始管理密码为：redhat (a support JUBB (similar UBB) two messages testing the legality of data, such as e-mail, home address three characters in the traditional support of the importation of four pages landscaping mistakes initial management of passwords : redhat)
- 2005-07-05 03:32:50下载
- 积分：1
