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Erschienen in:
2008 | OriginalPaper | Buchkapitel
Esoteric Rough Set Theory: Algebraic Semantics of a Generalized VPRS and VPFRS
verfasst von : A. Mani
Erschienen in: Transactions on Rough Sets VIII
Verlag: Springer Berlin Heidelberg
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In different theories involving indiscernibility, it is assumed that at some level the objects involved are actually assignable distinct names. This can prove difficult in different application contexts if the main semantic level is distinct from the semantic-naming level. Set-theoretically too this aspect is of much significance. In the present research paper we develop a framework for a generalized form of rough set theory involving partial equivalences on different types of approximation spaces. The theory is also used to develop an algebraic semantics for variable precision rough set and variable precision fuzzy rough set theory. A quasi-inductive concept of relativised rough approximation is also introduced in the last section. Its relation to esoteric rough sets is considered.