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《Journal of Anhui University of Technology and Science(Natural Science)》 2008-02
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Synchronication of discernibility matrix formation with reduction

MEI Can-hua1,4,MENG Qing-quan2,QI-Jiong3,LI Ming1(1.School of Information and Electrical Engineering,China University of Mining and Technology,Xuzhou 221116,China;2.School of Medicine and Information,Anhui College of Traditional Chinese Medicine,Hefei 230038,China;3.Institute of Chemistry,Electrical Power Research Institute,Hefei 230026,China;4.Huainan Vocational and Technical College,Huainan 232001,China)  
Aiming at the discernibility matrix limitation in rough sets,time-space performance in the three processes of discernibility matrix method is analyzed.Extracted matrix elements will not get involved in the formation of discernibility matrix,i.e.the synchronization method of discernibility matrix formation and attribution reduction.Discernibility matrix elements and medi-data disk space is reduced and data mining speed is improved.Time-space performance superiority of the method is verified by experiment.
【CateGory Index】: TP18
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