Big data clustering method based on decomposition and composition
A clustering method and big data technology, applied in database model, relational database, electronic digital data processing and other directions, can solve the problems of high dimension, difficult internal model of big data, and large amount of big data.
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[0049] A decomposing and combining clustering method for big data. First, the big data is segmented horizontally and vertically; then, the category label of each data subset is obtained, and then the combined clustering method is used to obtain the category label of the entire data set. The specific implementation steps are as follows:
[0050] 1) Cut horizontally. Use random sampling to split the big data horizontally, that is, randomly select 10% of the sample size to obtain the data subset D i , The repeated sampling with replacement is r=100 times, so that the full set of 100 data subsets is D.
[0051] 2) Split longitudinally. Using random sampling, for each data subset D i Perform longitudinal segmentation, that is, randomly select 10% of attributes to obtain data subset D ij , Repeated sampling with replacement c=100 times, making 100 data subsets D ij The complete works of D i .
[0052] 3) Obtain the category label of the data subset. Use K-means for each data set subset ...
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