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MyKmeans
实现聚类K均值算法: K均值算法:给定类的个数K,将n个对象分到K个类中去,使得类内对象之间的相似性最大,而类之间的相似性最小。 缺点:产生类的大小相差不会很大,对于脏数据很敏感。 改进的算法:k—medoids 方法。这儿选取一个对象叫做mediod来代替上面的中心 的作用,这样的一个medoid就标识了这个类。步骤: 1,任意选取K个对象作为medoids(O1,O2,…Oi…Ok)。 以下是循环的: 2,将余下的对象分到各个类中去(根据与medoid最相近的原则); 3,对于每个类(Oi)中,顺序选取一个Or,计算用Or代替Oi后的消耗—E(Or)。选择E最小的那个Or来代替Oi。这样K个medoids就改变了,下面就再转到2。 4,这样循环直到K个medoids固定下来。 这种算法对于脏数据和异常数据不敏感,但计算量显然要比K均值要大,一般只适合小数据量。(achieving K-mean clustering algorithms : K-means algorithm : given the number of Class K, n will be assigned to target K to 000 category, making target category of the similarity between the largest category of the similarity between the smallest. Disadvantages : class size have no great difference for dirty data is very sensitive. Improved algorithms : k-medoids methods. Here a selection of objects called mediod to replace the center of the above, the logo on a medoid this category. Steps : 1, arbitrary selection of objects as K medoids (O1, O2, Ok ... ... Oi). Following is a cycle : 2, the remaining targets assigned to each category (in accordance with the closest medoid principle); 3, for each category (Oi), the order of selection of a Or, calculated Oi Or replace the consumption-E (Or))
- 2005-07-26 01:32:58下载
- 积分:1
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p3
说明: image processing and noise models
- 2010-11-22 04:45:50下载
- 积分:1
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code
自编matlab小波分解以及重构的函数,希望大家多多指教,后期完善了自编的卷积积分再上传(matlab for wavelet by self)
- 2013-11-08 16:20:10下载
- 积分:1
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Variable-Fuzzy
可变模糊识别。利用可变模糊理论方法,对风险进行识别,并可以对风险因素进行重要性排序。(Variable Fuzzy Identification. Risk factors can be identified and sorted according to the importance degree based on the variable fuzzy theory.)
- 2015-03-22 16:53:52下载
- 积分:1
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DhhYc
这是用于电火花机床加工控制参数优化的一个多目标遗传算法的matlab程序,自己原创,分享出来和大家交流。
(It is used for electric discharge machining control parameters optimization of a multi-objective genetic algorithm matlab program, their own originality, share them and everyone exchanges.)
- 2009-09-16 10:02:08下载
- 积分:1
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JPEG_Decoder
用于2D图像的Encoder,Decoder(a JPEG Decoder for 2-D image,contain the jpeg file which needed)
- 2010-08-26 09:59:31下载
- 积分:1
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simulatecopula
copula的蒙特卡洛模拟,随机生成各种Copula函数。(simulate copula)
- 2012-07-08 23:03:13下载
- 积分:1
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03-2D
matlab_入門程式範例台灣大學張智星教授撰寫(matlab entry program examples)
- 2015-01-29 13:35:49下载
- 积分:1
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matlab-Citra-Digital
Image Processing using matlab
- 2013-12-20 00:20:49下载
- 积分:1
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MATLABDLL
MATLAB调用动态链接库实例程序,源代码(MATLAB example program called dynamic link library)
- 2014-01-29 20:32:10下载
- 积分:1