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Structural features of attribute reduction matrix and layer fast algorithm
Xu N.1; Zhang Y.1; Sun H.-W.2; Xiong H.-Y.1
2007-10-01
Source PublicationKongzhi Lilun Yu Yingyong/Control Theory and Applications
ISSN10008152
Volume24Issue:5Pages:766-770
AbstractCurrent algorithms provide only feasible attribute reductions, they are not necessarily the minimum ones. Thus, it is significant to analyze the characteristics of attribute reduction and get the minimum one from all reductions. Firstly, an attribute reduction matrix is defined based on the information system. The attribute reduction can be characterized by the structural features of the matrix. Then, a layer fast algorithm by matrix algebraic theory is proposed to solve the problem. Finally, numerical results are given to show the advantage of our method by highly reducing the computational cost.
KeywordAttribute reduction Fast algorithm Layer reduction Reduction matrix Rough sets Structural features
URLView the original
Language英語
Fulltext Access
Document TypeJournal article
CollectionDEPARTMENT OF MATHEMATICS
Affiliation1.Guangdong University of Technology
2.Universidade de Macau
3.Shanghai Institute of Technology
Recommended Citation
GB/T 7714
Xu N.,Zhang Y.,Sun H.-W.,et al. Structural features of attribute reduction matrix and layer fast algorithm[J]. Kongzhi Lilun Yu Yingyong/Control Theory and Applications,2007,24(5):766-770.
APA Xu N.,Zhang Y.,Sun H.-W.,&Xiong H.-Y..(2007).Structural features of attribute reduction matrix and layer fast algorithm.Kongzhi Lilun Yu Yingyong/Control Theory and Applications,24(5),766-770.
MLA Xu N.,et al."Structural features of attribute reduction matrix and layer fast algorithm".Kongzhi Lilun Yu Yingyong/Control Theory and Applications 24.5(2007):766-770.
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