AUTHORS: Chen Wu, Dandan Li, Ronghua Yang, Lijuan Wang, Xibei Yang
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ABSTRACT: This paper emphasizes studying on the properties of approximations in rough set and multi-granulation rough set models based on maximal compatible classes as primitive ones in which any two objects are mutually compatible, obtains several theorem results, proposes and designs the upper and lower approximation computation algorithms in multi-granulation rough set model. It verifies the correctness of algorithms by examples and experiments
KEYWORDS: incomplete information system; rough set model; maximal compatible class; algorithm; multi-granulation
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