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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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duane
This program performs the Duane growth method with least-squares fit of an input data set to a straight line
- 2011-02-02 02:26:31下载
- 积分:1
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delayofdm
ofdm 环路延迟估计,包括整数倍估计和小数倍估计。估计误差可调。(The ofdm loop delay estimation, including an integer multiple of estimates and a small multiple of the estimated. The estimation error is adjustable.)
- 2012-05-17 20:25:23下载
- 积分:1
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RS
说明: ReedSolomon编码译码的matlab源程序(ReedSolomon encoding decoding source code matlab)
- 2007-09-29 21:34:11下载
- 积分:1
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Untitledw
说明: 利用Matlab实现子功率谱的求解,并实现信号处理和能量算法(Matlab, the solution to achieve sub-power spectrum, and algorithms for signal processing and energy)
- 2010-04-17 12:01:20下载
- 积分:1
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PWATOOLS-master
分段仿射系统的matlab开发工具箱;
实现PWA系统的建模和稳定性分析;(
Matlab development kit of piecewise affine system
Modeling and stability analysis of PWA system )
- 2020-07-03 14:00:01下载
- 积分:1
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filter
滤波器的相关实验(Matlab下的M文件)(Filter related experiments (Matlab under the M-file))
- 2009-09-10 06:45:53下载
- 积分:1
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fdtd1D
一维fdtdMATLAB程序,主要用于处理问题电磁场(FdtdMATLAB one-dimensional process, is mainly used to deal with the issue of electromagnetic fields)
- 2009-04-13 15:16:50下载
- 积分:1
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lmsxx
毕业设计时做的算法,直接运行就可出图,比较的话可以该参数。(do graduate design algorithm can be run directly from the map, so can compare the parameters.)
- 2007-05-22 16:23:33下载
- 积分:1
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MYLDA
LDA algorithm for matlab
- 2011-10-07 07:17:07下载
- 积分:1