-
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
-
Double-PWM
MATLAB中双PWM变频器的Simulink实现,(Simulink realization of dual-PWM inverter)
- 2011-05-20 14:33:24下载
- 积分:1
-
Range-Free-Localization-Schemes-for-Large-Scale
Wireless Sensor Networks have been proposed for a multitude of
location-dependent applications. For such systems, the cost and
limitations of the hardware on sensing nodes prevent the use of
range-based localization schemes that depend on absolute pointto-
point distance estimates. Because coarse accuracy is sufficient
for most sensor network applications, solutions in range-free
localization are being pursued as a cost-effective alternative to
more expensive range-based approaches.
- 2013-11-11 18:26:17下载
- 积分:1
-
newNetwork
mobile user location matlab coding
- 2014-09-10 06:13:43下载
- 积分:1
-
adaptive_filtering_matlab
adaptive filtering matlab
- 2012-11-28 16:32:49下载
- 积分:1
-
CARMA_GI
这是“受控自回滑动平均模型”CARMA非线性系统的随机梯度辨识算法,用于参数估计以及模型建模。(This is a " controlled slide back the average model" CARMA nonlinear system stochastic gradient identification algorithm for parameter estimation and modeling.)
- 2016-07-13 08:50:35下载
- 积分:1
-
QPSK
qpsk调制例程。包括显示幅频特性曲线和星座图(qpsk modulation routine. Including the amplitude-frequency curve show and constellation)
- 2010-05-11 17:54:58下载
- 积分:1
-
deletefile
Pleas unzip the file and put in on the workspace
type deletfile to delete data files from database
Note: file name should be a number.
for more info type "help deletefile"
- 2011-05-22 15:36:42下载
- 积分:1
-
ppt
webcamera energy saving
- 2015-02-20 15:34:04下载
- 积分:1
-
8471ktvrar
em8471 vod点播软件.em8471 vod点播软件.(em8471 vod system)
- 2009-05-22 12:33:51下载
- 积分:1