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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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ReadData
read data function for project colour base image retrieval
- 2009-04-07 11:59:49下载
- 积分:1
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Gabor
gabor变换的论文,雷达信号处理方面的,很有用!!!(a paper about the gabor transformation of radar signal processing)
- 2010-11-19 19:33:40下载
- 积分:1
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MyMathematica
说明: 学习C调用Mathematica内核函数的一个例子,包括计算和图形接口.(Learning C calling Mathematica kernel functions with examples, including computing and graphics interfaces.)
- 2010-04-05 01:44:26下载
- 积分:1
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maidongfeng
模拟高耸结构的随机风载荷,风速时程,风载荷时程(Analog towering structures to random wind loads, wind speed time)
- 2013-09-13 11:46:04下载
- 积分:1
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MDM
this file desribe the propagation of mode in few mode fiber
- 2021-05-13 11:30:02下载
- 积分:1
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robot
移动机器人的避障仿真实验,可运行,模拟机器人避开障碍并到达目标点的过程(Mobile robot obstacle avoidance simulation can be run to simulate the robot to avoid obstacles and reach the target point in the process)
- 2016-05-29 23:45:37下载
- 积分:1
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matlab simulink
很好的书,matlab simulink通信系统建模与仿真实例分析(邵珏斌),很推荐(Very good book, matlab Simulink communication system modeling and simulation example analysis (Shao Zuobin), very recommended)
- 2018-12-04 15:25:52下载
- 积分:1
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MATLAB7_0
matlab7.0,适合初学者,不错的基础教程。。(Matlab tutorial foundation
)
- 2012-04-18 15:26:01下载
- 积分:1
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phasedifference
利用DFT实现两轮信号相位差计算,包含谐波信号污染,白噪声信号污染分析(Phase difference between two signals to achieve the use of DFT calculations, the signal containing harmonics pollution, contamination white noise signal analysis)
- 2013-12-09 12:06:24下载
- 积分:1