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BruteSearch
K-nearest neighbors 搜索 聚类时经常使用的一种方法 国外网站转载( The following utilities are provided:
- Nearest neighbor
- K-Nearest neighbors
- Radius Search
They al supports N-dimensions and work on double, it is possible to choose if return the distances.
Here is a time comparison with a vectrized m-code:
N=1000000 number of reference points
Nq=100 number of query points
dim=3 dimension of points
k=3 number of neighbor
tic
[idc,dist]=BruteSearchMex(p ,qp , k ,k) MEX
toc
tic
[idc,dist]=knnsearch(qp,p,k) VECTORIZED M-CODE
toc
p=rand(N,dim)
qp=rand(Nq,dim)
Output:
Elapsed time is 0.962640 seconds.
Elapsed time is 18.813100 seconds. )
- 2009-03-30 08:08:08下载
- 积分:1
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137611
convetible bond pricing , use different code to price, crr model
- 2012-05-30 16:40:14下载
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bullet-through-the-wall
bullet through the wall
- 2014-09-07 11:10:54下载
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Shotboundarydetection
code detectes the shot boundaries.
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matlabwork
说明: matlab初学者入学指导,把这些题做完了,matlab基本已经入门了(matlab beginners guide school, finished these questions, matlab basically have a beginning)
- 2010-04-16 17:19:49下载
- 积分:1
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arcss
基于曲率尺度空间(CSS)的图像边缘特征点检测matlab程序。(Detection matlab program based on curvature scale space (CSS) image edge feature points.)
- 2013-12-03 17:31:39下载
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sample6
重叠和不重叠分段计算的功率谱比较,算法通用性强。(Overlapping and non-overlapping sub-calculated power spectrum comparison)
- 2009-02-04 23:13:12下载
- 积分:1
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ronghe
两个传感器进行串联形式连接,融合系统贝叶斯风险曲线以及ROC曲线(Two sensors are connected in series, as well as fusion system Bayesian risk curve ROC curve)
- 2013-10-08 23:45:31下载
- 积分:1
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daoying
利用一个彩色图片,利用matlab编程编成一个有可动倒影的图像(The movable reflection
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- 2013-11-14 10:18:11下载
- 积分:1
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MATLAB_statistics_40
本书介绍了matlab统计中常用算法,并提供了详细案例及其解析,书中有matlab代码,适合数学建模学习者使用。(This book introduces the matlab statistics commonly used algorithms, and provides a detailed case and its resolution, the book has matlab code for mathematical modeling learners.)
- 2015-04-16 23:21:43下载
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