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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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IIR_background_extraction
说明： 该程序涉实现目标检测功能，IIR滤波器的背景估计法的背景相减目标检测 && canny(this is a goal detection program, a IIR filter )
- 2010-10-08 17:12:37下载
- 积分：1
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pde2
partial differential equation 2 by matlab
- 2010-02-06 01:00:23下载
- 积分：1
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LDPC
LDPC码既低密度奇偶校验码（Low Density Parity Check Code，LDPC）(（Low Density Parity Check Code，LDPC）)
- 2014-11-26 20:18:00下载
- 积分：1
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Flight-Vehicle-Design
基于分布式视觉的飞行器位姿估计与路径规划(Document of design)
- 2014-12-08 08:48:57下载
- 积分：1
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WaveformDownloadAssistant-v2
说明： Instrument control codes for downloading Matlab waveform file to the signal generator
- 2020-11-16 03:50:41下载
- 积分：1
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Matlab-source
精通MATLAB综合辅导与指南的配套磁盘程序,本书介绍了MATLAB一般原理和基本运算，重点介绍了MATLAB图形用户界面的结构和使用方法，包括二维、三维图形的控制、色彩的配置、用户专用界面的创建。(Proficient in MATLAB comprehensive guide to counseling and supporting disk procedures, this book introduces MATLAB general principles and basic computing, focuses on the MATLAB graphical user interface structure and the use of methods, including two-dimensional, three-dimensional graphics control, color configuration, user-specific interface to create.)
- 2007-08-16 14:29:00下载
- 积分：1
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robotadaptivecontrol
基于模型整体逼近的机器人RBF网络自适应控制，本例为双力臂仿真程序(The overall model-based RBF network approximation of the robot adaptive control, in this case simulation program for dual-arm)
- 2009-06-11 14:31:18下载
- 积分：1
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MATLAB-application
MATLAB应用程序接口用户指南
初学都作品。还望指点。(MATLAB Application Program Interface User Guide beginner all works. Also look directions.)
- 2011-06-05 20:30:09下载
- 积分：1
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yin
说明： itis yin algorithm for fo estimation
- 2019-06-14 14:46:01下载
- 积分：1
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