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NewK-means-clustering-algorithm
说明: 珍藏版,可实现,新K均值聚类算法,分为如下几个步骤:
一、初始化聚类中心
1、根据具体问题,凭经验从样本集中选出C个比较合适的样本作为初始聚类中心。
2、用前C个样本作为初始聚类中心。
3、将全部样本随机地分成C类,计算每类的样本均值,将样本均值作为初始聚类中心。
二、初始聚类
1、按就近原则将样本归入各聚类中心所代表的类中。
2、取一样本,将其归入与其最近的聚类中心的那一类中,重新计算样本均值,更新聚类中心。然后取下一样本,重复操作,直至所有样本归入相应类中。
三、判断聚类是否合理
采用误差平方和准则函数判断聚类是否合理,不合理则修改分类。循环进行判断、修改直至达到算法终止条件。(NewK-means clustering algorithm ,Divided into the following several steps:
A, initialize clustering center
1, according to the specific problems, from samples with experience selected C a more appropriate focus the sample as the initial clustering center.
2, with former C a sample as the initial clustering center.
3, will all samples randomly divided into C, calculate the sample mean, each the sample mean as the initial clustering center.
Second, initial clustering
1, according to the sample into the nearest principle clustering center represents the class.
2, as this, take the its recent as clustering center of that category, recount the sample mean, update clustering center. And then taking off, as this, repeated operation until all samples into the corresponding class.
Three, judge clustering is reasonable
Adopt error squares principles function cluster analysis.after clustering whether reasonable, no reasonable criterion revisio)
- 2011-04-06 20:45:56下载
- 积分:1
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123244567878
matlab中应用可靠性,计算可靠性,计算可靠性(matlab application reliability, the reliability calculation, computing reliability)
- 2015-01-28 18:25:54下载
- 积分:1
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QPSK_modulated_short_bursts
QPSK调制下的信道信噪比的分析与研究,里面的仿真不错,很详细。(QPSK modulation of channel signal to noise ratio analysis and research, which the simulation well, very detailed.)
- 2010-06-28 09:02:41下载
- 积分:1
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MIT_matlab
说明: mit的matlab教程,简单实用,都工科大学生有借鉴作用(mit of matlab tutorials, simple and practical, all engineering students have a reference)
- 2008-09-15 19:14:13下载
- 积分:1
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paper1
一种上行小区间干扰协调的方法.pdf (An uplink inter-cell interference coordination method .pdf)
- 2014-11-02 21:14:51下载
- 积分:1
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jytz.m
求取倒频谱系数,可对声音信号进行分析,是一种特征提取方式(Obtaining cepstral coefficients, can the sound signal analysis, feature extraction is a way)
- 2016-06-22 18:02:08下载
- 积分:1
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Srshcomp
this source code is very good
- 2013-08-16 01:30:40下载
- 积分:1
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ARRAY
利用GS迭代算法求解经过高数值孔径物镜聚焦产生列阵的Matlab程序。(the matlab program for generating array at the focus of high numerical aperture.
the phase distribution is obtained.)
- 2013-10-26 17:18:14下载
- 积分:1
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bank_net
关于OPNET里的一个仿真场景,还是可以参考一下,具体对新手还是比较适用的(OPNET in a simulation on the scene, or can refer to the specific comparison to the novice or the applicable)
- 2011-05-24 22:30:23下载
- 积分:1
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myadder
adder is the program for adding 2 inputs together
- 2010-09-06 16:55:06下载
- 积分:1