登录
首页 » matlab » k_medoids

k_medoids

于 2008-08-06 发布 文件大小:9KB
0 239
下载积分: 1 下载次数: 289

代码说明:

  聚类算法: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。 这里是MAtlab源代码。(err)

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • second
    ask的调制(相乘法产生)、解调(想干解调)、误码率分析(已调信号添加高斯噪声再分析)(ask the modulation, demodulation, BER analysis)
    2013-04-17 23:10:46下载
    积分:1
  • chap3
    程序代码说明 P0301:数字图像矩阵数据的显示及其傅立叶变换 P0302:二维离散余弦变换的图像压缩 P0303:采用灰度变换的方法增强图像的对比度 P0304:直方图均匀化 P0305:模拟图像受高斯白噪声和椒盐噪声的影响 P0306:采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波 P0307:采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波 P0308:图像的自适应魏纳滤波 P0309:运用5种不同的梯度增强法进行图像锐化 P0310:图像的高通滤波和掩模处理 P0311:利用巴特沃斯(Butterworth)低通滤波器对受噪声干扰的图像进行平滑处理 P0312:利用巴特沃斯(Butterworth)高通滤波器对图像进行锐化处理(Code Description P0301: digital image data display matrix and Fourier transform P0302: Two-dimensional discrete cosine transform image compression P0303: gray-scale transformation method using the contrast enhanced image P0304: Histogram of homogenization P0305: simulated images by Gaussian white noise and salt and pepper noise of P0306: two-dimensional median filter function medfilt2 on the image noise by filtering salt and pepper P0307: using MATLAB in the function filter2 noise on the image by mean filter P0308: Image Adaptive Weiner Filter P0309: the use of 5 different gradient enhanced image sharpening method P0310: the image of the high-pass filter and mask treatment P0311: Using Butterworth (Butterworth) low pass filter the image noise by smoothing P0312: Using Butterworth (Butterworth) high pass filter sharpening the image)
    2010-05-17 18:20:35下载
    积分:1
  • TV
    说明:  Good compressive sensing program, using TV recovery, can be a good application in video and image.
    2014-09-11 19:00:34下载
    积分:1
  • ham_lpf
    几种滤波器:hamming窗口的低通滤波器,给定技术指标的模拟巴特沃兹低通滤波器,kaiser窗口的带阻滤波器,blackman窗口的带通滤波器,Kaiser 窗低通滤波器(Several filters: hamming window low-pass filter, given specifications of the analog Butterworth low-pass filter, kaiser window band stop filter, blackman window bandpass filters, Kaiser window low-pass filter)
    2010-08-05 19:22:33下载
    积分:1
  • Fourier_Transform
    Fourier transform and DFT (Fourier transform)
    2010-10-20 16:26:17下载
    积分:1
  • MinLM1
    说明:  非线性最小二乘优化问题 非线性最小二乘优化问题的程序,欢迎各位下载(Nonlinear least squares optimization problem of nonlinear least square optimization procedure, to welcome you to download)
    2011-04-12 19:24:02下载
    积分:1
  • JAWABAN-A
    matlab simulation example
    2014-10-29 15:23:54下载
    积分:1
  • matlab经典算法的
    说明:  经典算法案例,实用教程。有各种分类及源代码,从简到繁。(Classical algorithmic cases, practical tutorials)
    2020-06-18 01:40:01下载
    积分:1
  • chazhi
    插值法,matlab实现, pdf格式报告,内含代码(Interpolation method, matlab implementation, pdf format reports, containing the code)
    2009-12-21 16:20:25下载
    积分:1
  • aybook.cn_pinwinumaintd1008
    说明:  matlab方面的资料!是学习Matlab的好资料!!!!!(this is matlab ,matlab learnings,can learning more from it!)
    2009-08-24 21:12:24下载
    积分:1
  • 696516资源总数
  • 106442会员总数
  • 11今日下载