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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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1
说明: This MATLAB code calculates the array factor for N element linear array. N单元线性阵列的方向图函数MATLAB仿真代码(This MATLAB code calculates the array factor for N element linear array. N element linear array pattern function of the MATLAB simulation code)
- 2008-11-17 10:17:24下载
- 积分:1
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carCluster
一个按照各类汽车参数做的聚类分析的mapreduce程序,可以看到各车型的分类情况。(Mapreduce program in accordance with all types of vehicle parameters to do a cluster analysis, you can see the various models of classification.)
- 2014-08-27 13:11:13下载
- 积分:1
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6-ot-49
this is edokvosi edishtosi neznam si kbo ebasi tuopto
- 2014-09-16 02:15:21下载
- 积分:1
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l1
说明: 压缩感知的一个应用实例,对压缩后的信号用BP算法重构(An application of compressed sensing, on the compressed signal with the BP algorithm has)
- 2010-06-30 18:03:43下载
- 积分:1
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rytr
car plate recogion system
- 2014-10-27 19:59:50下载
- 积分:1
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Tugas
image processing for academic
- 2009-12-08 21:11:57下载
- 积分:1
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cordic.tar
the cordic algorithm on matlab
- 2010-11-29 06:29:56下载
- 积分:1
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fenge
图像阈值分割程序,里面有好几个。运行ostu.m(Image threshold segmentation)
- 2012-03-24 16:02:25下载
- 积分:1
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CS-for-spring-design
用matlab实现启发式算法布谷鸟算法在弹簧设计中的应用程序(Application of the heuristic algorithm the cuckoo algorithm in the spring design using matlab
)
- 2012-07-26 19:14:01下载
- 积分:1