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fs_sup_relieff
Relief算法中特征和类别的相关性是基于特征对近距离样本的区分能力。算法从训练集D中选择一个样本R,然后从和R同类的样本中寻找最近邻样本H,称为Near Hit,从和R不同类的样本中寻找最近样本M,称为Near Miss,根据以下规则更新每个特征的权重:
如果R和Near Hit在某个特征上的距离小于R和Near Miss上的距离,则说明该特征对区分同类和不同类的最近邻是有益的,则增加该特征的权重;反之,如果R和Near Hit在某个特征上的距离大于R和Near Miss上的距离,则说明该特征对区分同类和不同类的最近邻起负面作用,则降低该特征的权重。(The correlation between feature and category in Relief algorithm is based on distinguishing ability of feature to close sample. The algorithm selects a sample R from the training set D, and then searches for the nearest neighbor sample H from the samples of the same R, called Near Hit, and searches for the nearest sample M from the sample of the R dissimilar, called the Near Miss, and updates the weight of each feature according to the following rules:
If the distance between R and Near Hit on a certain feature is less than the distance between R and Near Miss, it shows that the feature is beneficial to the nearest neighbor of the same kind and dissimilar, and increases the weight of the feature; conversely, if the distance between R and Near Hit is greater than the distance on R and Near Miss, the feature is the same. The negative effect of nearest neighbor between class and different kind reduces the weight of the feature.)
- 2018-04-17 14:41:55下载
- 积分:1
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trafficproc1119
本程序主要采取结构体进行编程,对帧中运动车辆进行跟踪,一个车一个标号,标号自增1.(The main structure of this program is programmed to take on the frame to track moving vehicles, a car of a label, label increment 1.)
- 2010-12-24 19:27:42下载
- 积分:1
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Matlab_examples
说明: Matlab实用100个例子,可以帮助初学者入门,很实用的哦,(100 examples of Matlab utility that can help beginners and entry, it is useful Oh,)
- 2008-12-04 03:07:26下载
- 积分:1
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cmmi1
Capability Maturity Model Integration, Version 1.1
CMMI for Systems Engineering and Software Engineering(Capability Maturity Model Integration, Version 1.1 CMMI for Systems Engineering and So Industrial Engineering)
- 2006-09-26 08:52:37下载
- 积分:1
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watermark的DCT代码2
有一个机遇DCT域的数字水印算法,里面有详细的注释说明,可以拿来研究(This is a DCT watermarking algorithm attached with detailed comments and explanation, which can be used for research purpose. )
- 2005-04-25 18:42:18下载
- 积分:1
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perceptron
matlab下模式识别代码 感知机,最小二乘法(Under the pattern recognition code matlab)
- 2010-05-06 01:54:08下载
- 积分:1
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case57
57节点潮流计算代码,能够显示出潮流计算结果,输入renfp(‘case57’)即可(57 node flow calculation code, can show the flow calculation results, enter renfp (' case57' ) can be)
- 2013-05-16 07:32:56下载
- 积分:1
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Disfrft
快速计算离散分数阶Fourier的方法,不多介绍啦。(Disfrft)
- 2010-09-17 15:37:32下载
- 积分:1
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CampingGearChecklist
camping checklist for outback campers. A must for deep forest hikers.
- 2014-11-26 13:36:21下载
- 积分:1
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小电流接地系统的建模与仿真
1、理解小电流接地系统的概念;
2、理解中性点不接地和经消弧线圈接地系统单相故障的特点;
3、学会用MATLAB/Simulink进行小电流接地系统的建模与仿真。
(1, understand the concept of small current grounding system
2, understand the neutral point ungrounded and arc suppression coil grounding system single-phase fault characteristics
3, learn to use MATLAB/Simulink for small current grounding system modeling and simulation.)
- 2020-11-16 22:19:41下载
- 积分:1