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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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MATLAB
以上为matlab在控制系统仿真中一些例子程序,对学习控制系统仿真的朋友有一些帮助(About mathematical modeling risk overdraw problem program, mainly to solve the risk of the investment in the optimal strategy is more than the main Linux multi-threading with processes the correlative analysis of the performance, very classic, is suitable for various beginners above for matlab in control system simulation program some examples to the study of control system simulation friend has some help
)
- 2012-05-26 21:03:10下载
- 积分:1
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4
说明: This file contains matlab codes for non-linear estimation of Sevasson 1994 yield curve model
- 2012-06-13 08:55:43下载
- 积分:1
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rayleigh_dispersion_p
计算瑞雷波频散曲线GUI小程序,matlab写,内含使用说明(Rayleigh wave dispersion curves calculated GUI applet, matlab write, containing instructions for use)
- 2021-04-24 21:08:47下载
- 积分:1
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matlab_TXCL
强大的图像处理程序,良好的GUI界面,可以进行图像的基本编辑、图像滤波、傅里叶变换、噪声去除、图像增强等(Powerful image processing program, a good GUI interface and basic editing can be image, image filtering, Fourier transform, noise removal, image enhancement, etc.)
- 2011-05-15 00:12:08下载
- 积分:1
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electromagnetic_field_numerical
一本介绍电磁场数值分析的书,分别介绍了有限差分,有限元,矩量法和最优化方法(1 Introduction Numerical Analysis of Electromagnetic Field book, introduced the finite difference, finite element, method of moments and optimization methods)
- 2010-05-27 10:52:01下载
- 积分:1
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EleKK
有限元三角形线性常应变单元的单元刚度阵的计算函数(failed to translate)
- 2013-05-08 20:57:40下载
- 积分:1
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PSNRSSIM_matlab
matlab计算两幅图片之间的psnr和ssim值,彩色图片,算法是转换为YUV计算的,YCbCr(matlab computing psnr and ssim value between two pictures, color pictures, the algorithm is converted to YUV calculation, YCbCr)
- 2015-08-28 22:21:18下载
- 积分:1
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CSO
说明: 实验室约束鸡群算法,经过实验室同仁试验过,绝对简单真实,适合初学者。(Laboratory constrained chicken swarm algorithm, which has been tested by colleagues in the laboratory, is absolutely simple and true, and suitable for beginners.)
- 2020-06-18 03:00:02下载
- 积分:1
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hyperspectral-data-processing
高光谱数据处理基本算法,异常点检测,端元提取,丰度图K均值聚类,PCA算法(anomalydetection endmemberExtraction Kmeansclustering by abundancemap PCA NAPCA)
- 2011-11-21 20:06:47下载
- 积分:1