Patulous Research on Dominance-based Rough Set
WU Shang
CHENG Hongfu
MING Xiaole
Abstract：To investigate rough set in the incomplete information system from multi-view ,the rough set of dominance relation in complete information system and rough set model of expanded dominance relation in the incomplete system have been analyzed .Then ,another expanded rough set model of dominance relation in the incomplete system has been proposed . Furthermore ,it proved that the new theory can get bigger lower approximation and smaller upper approximation than the old one by analyzing the properties of new theory .
Keywords：incomplete information systemexpanded dominance relationrough setupper approximationlower ap-proximation
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 943-947 )