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k_means
首先从n个数据对象任意选择 k 个对象作为初始聚类中心;而对于所剩下其它对象,则根据它们与这些聚类中心的相似度(距离),分别将它们分配给与其最相似的(聚类中心所代表的)聚类;然后再计算每个所获新聚类的聚类中心(该聚类中所有对象的均值);不断重复这一过程直到标准测度函数开始收敛为止。一般都采用均方差作为标准测度函数. k个聚类具有以下特点:各聚类本身尽可能的紧凑,而各聚类之间尽可能的分开。(First, a data object from the n choose k objects as initial cluster centers and for the rest of the other objects, according to their similarity with the cluster center (distance), respectively, assign them to their most similar (represented by cluster center) clustering then calculated for each cluster center received a new clustering (all objects in the cluster mean) repeats this process until the convergence criteria begin until the measure function. Standard deviation is generally used as a standard measure function. K a cluster has the following characteristics: the cluster itself as a compact, but separated as much as possible between each cluster.)
- 2011-01-04 12:30:31下载
- 积分:1
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power_transfo
Three-Winding Distribution Transformer
This demonstration illustrates the use of the linear transformer to simulate a three-winding distribution transformer rated 75 kVA - 14400/120/120 V.
G. Sybille (Hydro-Quebec)
- 2012-03-29 21:11:10下载
- 积分:1
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modified-jakes-working
Modified jakes model implementation with Walsh Hadamard code. Autocorrelation and cross correlation are the outputs
- 2014-12-14 21:59:01下载
- 积分:1
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Matlab3
MATLAB 数值积分,包括各种积分,非常实用,例子很容易懂(MATLAB numerical integration, including integration, very practical, very easy to understand examples)
- 2014-02-27 18:55:46下载
- 积分:1
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correlation
correlation programs in matlab
correlation programs in matlab
correlation programs in matlab
- 2013-09-28 18:53:27下载
- 积分:1
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wavefront-interferometer
于斐索干涉仪的数字波面干涉技术研究.费索性的干涉仪,具有共光路的结构。(In Ophir cable digital wavefront interferometer interference technology research)
- 2014-11-02 15:58:00下载
- 积分:1
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steepdescent
优化计算,最小值分析,解决实际问题,学习,研究、不断提高。(Optimization calculation, the minimum value analysis, problem solving, learning, research, and continuously improved.)
- 2010-05-13 23:32:53下载
- 积分:1
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shujupinghua1
在系统辨识前,对输入输出数据进行平滑处理,列举了移动平均法、loess、sgolay等几种平滑方法进行分析比较(System identification, data input and output smoothing, moving average method, loess, sgolay cited several smoothing methods were analyzed and compared)
- 2013-03-12 10:02:46下载
- 积分:1
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Lillieforetest
Lilliefore test matlab代码(matlab code for Lilliefore test)
- 2014-12-16 21:52:16下载
- 积分:1
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DTMF
用matlab实现的DTMF解码3种算法(Using the DTMF decoder matlab realize three kinds of algorithm)
- 2008-03-21 15:59:39下载
- 积分:1