Title :
A comparison of two types of generalized rough sets
Author_Institution :
Sch. of Inf. Sci., Beijing Language & Culture Univ., Beijing, China
Abstract :
Corresponding to two equivalent forms of Pawlak rough approximations, two different generalized rough sets, based on arbitrary relations, are proposed. This paper studies these two generalized rough sets. The relationship and difference between these two generalized rough sets are considered.
Keywords :
rough set theory; Pawlak rough approximation; generalized rough set; Approximation methods; Cognition; Educational institutions; Fuzzy sets; Rough sets; Symmetric matrices; Left and right relative sets; Lower and upper approximations; Relation; Rough set;
Conference_Titel :
Granular Computing (GrC), 2011 IEEE International Conference on
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-4577-0372-0
DOI :
10.1109/GRC.2011.6122634
