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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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code1
various coding..........................
- 2012-05-15 00:24:48下载
- 积分:1
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Mathmatlab
应用matlab对负责数学模型分析求解方法解析(Application the matlab responsible mathematical model analysis method for solving resolution)
- 2013-01-21 00:19:29下载
- 积分:1
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CSSin
一种基于压缩感知的正弦信号重构算法,已经经过仿真验证(A sinusoidal signal reconstruction algorithm based on compressed sensing has been verified through simulation)
- 2013-12-18 23:46:28下载
- 积分:1
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getrnd
原创:随机抽样。从一系列的总体中抽取出指定数量的不重复样本点。(random sampling. From a range of the overall extraction of a specified quantity of sample points of non-repetition.)
- 2009-03-03 09:34:11下载
- 积分:1
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nlms
Matlab code for mlms
- 2009-05-16 12:52:47下载
- 积分:1
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saolei
说明: matlab写的扫雷小游戏,有兴趣的可以试玩一下。(matlab write mine game, are interested in you can try.)
- 2008-11-05 23:29:35下载
- 积分:1
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mexcdf.r4000
Toolbox to read netcdf files on Matlab
Install:
javaaddpath([pwd /netcdfAll-4.2.jar ])
unzip( mexcdf.r4000.zip )
addpath ([pwd /mexcdf/mexnc ])
addpath ([pwd /mexcdf/snctools ])
- 2013-08-17 09:53:36下载
- 积分:1
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RSMstandardnorm
用响应面法计算可靠度.已知极限状态方程,变量相互独立,服从标准正态分布。(Calculation of reliability by response surface methodology. Known limit state equation, variables are independent standard normal distribution.)
- 2013-12-30 15:25:27下载
- 积分:1
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verhulst3
verhulst模型预测代码,MATLAB代码,,,,,(Verhulst model prediction code, MATLAB code,)
- 2018-10-15 10:30:42下载
- 积分:1