A generalized definition of rough approximations based on similarity
Slowinski, Roman; Vanderpooten, Daniel (2000), A generalized definition of rough approximations based on similarity, IEEE Transactions on Knowledge and Data Engineering, 12, 2, p. 331-336. http://doi.ieeecomputersociety.org/10.1109/69.842271
TypeArticle accepté pour publication ou publié
Journal nameIEEE Transactions on Knowledge and Data Engineering
MetadataShow full item record
Abstract (EN)This paper proposes new definitions of lower and upper approximations, which are basic concepts of the rough set theory. These definitions follow naturally from the concept of ambiguity introduced in this paper. The new definitions are compared to the classical definitions and are shown to be more general, in the sense that they are the only ones which can be used for any type of indiscernibility or similarity relation.
Subjects / KeywordsRough sets; similarity relation.; lower and upper approximations; ambiguity
Showing items related by title and author.
Aissi, Hassene; Bazgan, Cristina; Vanderpooten, Daniel (2007) Article accepté pour publication ou publié
Aissi, Hassene; Bazgan, Cristina; Vanderpooten, Daniel (2010) Article accepté pour publication ou publié