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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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7758521
说明： 一个EXIT图的MATLAB仿真程序，已经经过了测试时正确的，可以使用，EXIT图可以有效的分析LDPC，TURBO码的度分布问题(An EXIT figure of MATLAB simulation program, had already passed the test, can use correctly, the analysis of EXIT figure can effectively TURBO yards of degrees, LDPC distribution problems
)
- 2011-03-29 11:02:30下载
- 积分：1
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image
MATLAB实现基于互相关的亚像素级图像匹配配准源代码(MATLAB-based implementation of inter-related sub-pixel image matching with prospective source code)
- 2009-03-03 17:25:29下载
- 积分：1
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tv1
tv算法能够实现图像修复的微小破损，比如裂痕等。(tv algorithm to achieve the minimal repair damaged images, such as cracks and so on.)
- 2009-05-20 10:30:36下载
- 积分：1
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chap4
《visual c++matlab图像处理与识别实用案例精选》源码(" Visual c++ matlab image processing and recognition of practical cases selected" source)
- 2009-05-09 22:53:04下载
- 积分：1
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autoThreshodseg
automatic threshold segmention
- 2010-01-02 17:26:47下载
- 积分：1
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cva3
基于CVA+som的故障诊断,0为simple SOM，1为PCA+SOM, 2为CCA+SOM(CCA与PLS算法相同),3为LDA+SOM,
(Based on CVA+ som fault diagnosis, 0 for the simple SOM, 1 for the PCA+ SOM, 2 for the CCA+ SOM (CCA and PLS algorithm the same), 3 for the LDA+ SOM,)
- 2017-03-04 23:23:53下载
- 积分：1
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dem
digital terrain model
- 2010-06-29 03:55:59下载
- 积分：1
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fc_testIsenburg
对浮点型数据进行压缩，将数据分为3个部分：符号位、指数、尾数，分别对其进行压缩(Of floating-point type data compression, data is divided into three parts: sign bit, index, mantissa, respectively, to compress their)
- 2009-05-04 13:03:29下载
- 积分：1
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EvaluationandDecisionMaking
说明： 综合评价与决策方法，同样是与数学建模有关的内容。(Evaluation and decision making, and mathematical modeling is also related to the content.)
- 2010-04-28 18:40:16下载
- 积分：1
