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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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microsphere-cavity
光学微球腔尺寸参数与相对折射率的关系仿真程序(The simulation program on Optical microsphere cavity dimension parameters and the refractive )
- 2020-11-06 17:19:49下载
- 积分:1
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一维等离子体的so-fdtd算法程序
一维等离子体的so—fdtd算法程序,也可推广到一般色散介质。(One-dimensional plasma so-fdtd algorithm program)
- 2011-02-15 11:25:45下载
- 积分:1
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svc2
说明: 三相无功补偿(svc)matlab仿真,希望大家相互学习!(Three phase reactive compensation
)
- 2011-03-04 15:57:08下载
- 积分:1
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BESO
双向渐进结构拓扑优化原始代码,采用软杀伤法的BESO( the source code of Bidirectional evolutionary structural topology optimization with the soft kill law BESO)
- 2021-02-17 10:39:46下载
- 积分:1
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SC-FDMA-
关于LTE上行SC-FDMA介绍,包括系统框架设计及原理(SC-FDMA on the uplink LTE Introduction
)
- 2011-04-27 21:38:25下载
- 积分:1
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UHVvoltagedomain
电力系统分析软件,可对特高压系统电压控制域进行分析(Power system analysis software, can UHV analysis system voltage control domain)
- 2010-09-13 21:05:21下载
- 积分:1
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huise_jiaquan
加权灰色GM(1,1)模型代码,需要调用搜索工具箱(Weighted Grey GM (1,1) model code, call the search Toolbox)
- 2011-05-13 23:42:37下载
- 积分:1
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jizuobiao
本程序采用MATLAB对IEEE标准测试系统算例进行编程,并给出了9,14,30,39,57等系统的数据,将数据直接导入潮流主程序编程进行计算分析(The program uses MATLAB to IEEE standard test systems for programming examples, and gives 9,14,30,39,57 other system data, trend data directly into the main program for calculation and analysis)
- 2011-07-26 10:25:48下载
- 积分:1
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guidedfilter
kaiming he的guided image filtering的c++代码,利用VS2010+OPENCV2.4.4实现,效果和公布的MATLAB代码相同。(C++ code for KaiMing He s guided image filtering, the result as same as matlab code which publish in the web, project is code via VS2010+OPENCV2.4.4.)
- 2013-12-15 21:38:35下载
- 积分:1