Structure of Covering-based Rough Sets
Commenced in January 2007
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Edition: International
Paper Count: 32919
Structure of Covering-based Rough Sets

Authors: Shiping Wang, Peiyong Zhu, William Zhu


Rough set theory is a very effective tool to deal with granularity and vagueness in information systems. Covering-based rough set theory is an extension of classical rough set theory. In this paper, firstly we present the characteristics of the reducible element and the minimal description covering-based rough sets through downsets. Then we establish lattices and topological spaces in coveringbased rough sets through down-sets and up-sets. In this way, one can investigate covering-based rough sets from algebraic and topological points of view.

Keywords: Covering, poset, down-set, lattice, topological space, topological base.

Digital Object Identifier (DOI):

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