Approximation Algebra and Framework
Fundamenta Informaticae - Fundamentals of Knowledge Technology
Algebraic models of deviant modal operators based on de Morgan and Kleene lattices
Information Sciences: an International Journal
ICFCA'11 Proceedings of the 9th international conference on Formal concept analysis
Generalized rough sets and implication lattices
Transactions on rough sets XIV
Matroidal approaches to rough sets via closure operators
International Journal of Approximate Reasoning
An Investigation About Rough Set Theory: Some Foundational and Mathematical Aspects
Fundamenta Informaticae - Advances in Rough Set Theory
Dialectics of counting and the mathematics of vagueness
Transactions on Rough Sets XV
Approximation Algebra and Framework
Fundamenta Informaticae - Fundamentals of Knowledge Technology
Axiomatic granular approach to knowledge correspondences
RSKT'12 Proceedings of the 7th international conference on Rough Sets and Knowledge Technology
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The non---equational notion of abstract approximation space for roughness theory is introduced, and its relationship with the equational definition of lattice with Tarski interior and closure operations is studied. Their categorical isomorphism is proved, and the role of the Tarski interior and closure with an algebraic semantic of a S4---like model of modal logic is widely investigated.A hierarchy of three particular models of this approach to roughness based on a concrete universe is described, listed from the stronger model to the weaker one: (1) the partition spaces, (2) the topological spaces by open basis, and (3) the covering spaces.