Method and system for clustering optimization based on Canopy algorithm
An optimization method and clustering technology, applied in computing, special data processing applications, instruments, etc., can solve the problems of influence and lack of reference in value selection, and achieve the effect of improving calculation efficiency, reducing the number of comparisons, and eliminating influence.
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[0054] figure 1 It is the overall flow chart of the method of the present invention, which is mainly divided into 2 steps:
[0055] 1) Choose the simple and low computational cost of Canopy clustering method to calculate the object similarity, put similar objects in a subset, this subset is called Canopy, and get several Canopy through a series of calculations. Canopy can overlap. Yes, but there is no case that an object does not belong to any Canopy. This stage can be regarded as data preprocessing; after the Canopy clustering of the data set is completed, it is similar to Figure 2:
[0056] 2) The K-means clustering algorithm is used in each Canopy, and similarity calculations are not performed between objects that do not belong to the same Canopy.
[0057] The main idea of generating Canopy: Initially, suppose we have a set of points S, and preset two distance thresholds, T1, T2 (T1> T2); Then select a point, calculate the distance between it and other points in S (a very low-co...
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