Big data space-oriented data local density clustering method
A data local and density clustering technology, which is applied to computer parts, instruments, character and pattern recognition, etc., can solve problems such as poor clustering effect, difficult data processing, unreasonable algorithm structure, etc., to achieve effective mining and The effect of the analysis
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[0027] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention.
[0028] Such as Figure 1-2 As shown, a data local density clustering method for large data space, including the following steps:
[0029] Step S1: preset the density parameter σ and the distance adjustment parameter coefR;
[0030] Step S2: According to the following formula, the P of each data point in the data set i (i=1,2,...) local density values are calculated;
[0031]
[0032] In the formula, the Gaussian function of the right formula represents each data point pair x i point; σ is the density parameter, which determines the change gradient of the density function.
[0033] Step S3: compare the density value of each point, search for the maximum local density point, and use it as the densit...
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