Backward coarse collecting attribute reducing method using directed search
A directional search and attribute reduction technology, applied in the field of information processing, can solve problems such as single direction, poor attribute reduction results, etc., to achieve the effect of strong pertinence, strong versatility, and flexibility and simplicity
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[0016] In order to better understand the technical solution of the present invention, further description will be made below in conjunction with the accompanying drawings and embodiments.
[0017] (1) Initialization:
[0018] Each attribute in the initial attribute set F according to the mutual information I(f i ; P) Rearrange from small to large, and store the sorted initial attribute set F into the directional storage area (Beam). Mutual information is arranged from small to large to facilitate finding the child equivalent attribute subsets of the first M attribute subsets in the directional storage area with the smallest redundant synergy coefficient, which can compress the directional search space and reduce the search time.
[0019] Note that the redundancy synergy coefficient describes the degree of redundancy and combination synergy of attribute subsets from the perspective of information quotient. A(A={f i |f i ∈A, i=1,...,a})F, RSC(A) is called the redundant syne...
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