Rough relation
نویسنده
چکیده
Rough relation algebras arise from Pawlak’s information systems by considering as object ordered pairs on a fixed set X . Thus, the subsets to be approximated are binary relations over X , and hence, we have at our disposal not only the set theoretic operations, but also the relational operators ; , ̆ , and the identity relation 1′. In the present paper, which is a continuation of [6], we further investigate the structure of abstract rough relation algebras.
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تاریخ انتشار 2005