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houghpeaks
说明: 通过设定个数,可以获取到重合度最高的几条直线在变换域中的几个点!(By setting the number, you can get to the highest degree of coincidence a few lines at several points in the transform domain!)
- 2011-03-16 00:24:48下载
- 积分:1
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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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huofu
matlab中运用hough变换,设定恰当的阈值,将超过阈值的点在三维空间标示出来&将三维参数矩阵根据半径的不同做成不同的帧,制作成视频(hough transform matlab in use, set the appropriate threshold, will exceed the threshold point in three-dimensional space marked out & three-dimensional parameter matrix made of different frames depending on the radius, made into video)
- 2013-12-23 20:39:16下载
- 积分:1
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per
才用周期图法预测hurst指数。参数sequence为时间序列,isplot说明是否需要画图。(Have used the periodogram forecast hurst index. Parameter sequence for the time series, isplot explain the need for drawing.)
- 2010-08-19 01:45:42下载
- 积分:1
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p2
说明: programa de la segunda practica para analisis de señ ales biomedicas con calculo de ecg
- 2010-05-20 01:40:57下载
- 积分:1
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fdtd2D
二维FDTD分析电磁散射问题的matlab源码(2D-FDTD for the simulation of electromagnetic scattering)
- 2010-09-27 21:38:54下载
- 积分:1
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heat
Heat is a very important part of our life.
- 2010-07-12 20:57:07下载
- 积分:1
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Grubbs
说明: 用格拉布斯准则判断异常数据,通过检测输入数据剔除粗大误差( use Grubbs Criteria to determine outlier , removing the gross error detection
)
- 2011-04-08 11:58:30下载
- 积分:1
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lab
convolution & correlation
- 2012-03-27 14:46:46下载
- 积分:1
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Entropy_web_code
盲源分离;非参数核熵估计;两种计算核的算法,速度更快(Blind Source Separation;non-parametric kernel entropy estimation;two different accelerated kernel algorithms;more volecity)
- 2012-04-05 13:06:47下载
- 积分:1