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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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fuzzyPID
说明: PID调节和模糊PID调节,主要用于智能控制领域(PID regulator)
- 2010-04-08 19:53:08下载
- 积分:1
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Gaussian-eliminat
高斯消元法MATLAB实现,小报告形式展现(Gaussian elimination MATLAB implementation)
- 2013-10-14 17:06:12下载
- 积分:1
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matlab--cftool
曲线拟合资料,自己学习过程中积累的一些文档,包含多种数据拟合方法。(Curve fitting data, some of the documents accumulated in their own learning process, contains a variety of data fitting methods.)
- 2014-01-07 16:13:56下载
- 积分:1
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Comfort
该程序可在读取列车各布点加速度响应的基础上计算列车运行时舒适性的评价指数(The program can calculate the evaluation index of ride comfort on the basis of reading the acceleration response of all points of train.)
- 2018-04-02 21:19:30下载
- 积分:1
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stego
Advanced steganography using matlab
- 2012-12-29 14:57:10下载
- 积分:1
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bmpyasuo
图象压缩 huffman 编码的matlab实现程序 (image compression Huffman coding procedures to achieve the Matlab)
- 2007-05-30 15:30:35下载
- 积分:1
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imagecompression
说明: 图像压缩:对图像进行压缩,取得了比较好的压缩效果。(image compression:compress the image and get a good compression results.)
- 2010-04-29 11:48:31下载
- 积分:1
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matlab-100-examples
matlab 100个小程序的示范例子,有界面的输入,交互性不错。(demonstration examples Matlab 100 small programs, interface input, good interactivity.)
- 2013-03-21 16:34:10下载
- 积分:1
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kmv
KMV编程代码,很实用的,把数据代进去就行了鸭(KMV programming code, very practical, put the data in place on the duck.)
- 2018-09-13 22:59:26下载
- 积分:1