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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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SEM_matlab
It can be applyed forthe Spectral Element Method conbined finite element and spectral method to solve the 2D wave equation.as a pecial case is SH. dynamic fault with slip weakening is considered either.
- 2011-11-21 20:32:37下载
- 积分:1
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car_shadow
基于阴影分割的车辆检测识别,可以成功地检测出车辆位置(the vehicle detection based on shadow,it can detect the vehicle succefully)
- 2016-05-17 09:50:39下载
- 积分:1
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FFTinMatlab
Matlab实现FFT变换代码(包括单边谱及双边谱)(Matlab realization of FFT transform code (including unilateral and bilateral spectrum spectrum))
- 2009-12-11 16:30:01下载
- 积分:1
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qam16_good
16QAM软解调方式,适合与Turbo码、LDPC等结合,可按照次思路扩展到高阶调制和解调(16QAM soft demodulation method, suitable combination of Turbo codes, LDPC, in accordance with sub-ideas to be extended to higher order modulation and demodulation)
- 2021-04-25 21:18:46下载
- 积分:1
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123
利用单元平均CFAR门限以及单元平均选大CFAR来实现信号的频谱搜索(Using cell average CFAR threshold and average unit chosen CFAR to realize the signal spectrum search )
- 2014-12-15 14:37:14下载
- 积分:1
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zhendongxinhaopinyuchuli
对振动信号进行频域处理包括:信号谱分析,matlab中没有的窗函数处理,三分之一倍频程处理、、、(The vibration signal of the frequency domain includes: signal spectrum analysis, the window function in MATLAB no, 1/3 octave processing,,,)
- 2015-05-11 10:29:36下载
- 积分:1
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25811265sound_analysis
主要是通过matlab编写设计一个矩形窗的程序(Written mainly by matlab program to design a rectangular window)
- 2010-11-10 19:24:53下载
- 积分:1
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ica
可以分离语音的独立分量分析程序 可以实现瞬时和卷积混合的分离 相当好用(ica_f.m bsepf2 is the main program and it needs
correlation.m
decorrelation.m
permutation.m
sepfilter.m.
You also need to visit
ftp://sig.enst.fr/pub/jfc/Algo/Joint_Diag/
and get a matlab code "joint_diag.m". this is by Jean-Franc{c}ois
Cardoso. You have to put the code under this directory "ica".
usage is
function [Y1,Y2] = ica_f(X,NFFT,FS,OVERLAP,N)
)
- 2009-12-30 15:41:03下载
- 积分:1
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genetic-algorithm
基于艾德尔菲大学的遗传工具箱具体应用指导,非常详细(Application specific instruction genetic toolbox based on Edel Faye University, very detailed)
- 2013-11-08 19:58:49下载
- 积分:1