Title :
The Close-Degree of Covering Rough Sets
Author_Institution :
Sichuan Provincial Key Lab. of Numerical Simulation, Neijiang Normal Univ., Neijiang, China
Abstract :
Close-degree is a measurement to describe the closeness level of two fuzzy sets, which is an important means of pattern recognition with close optional principle. The concept of the close-degree of covering rough sets based on neighborhood to describe the closeness of two rough sets is proposed, and the basic properties of the close-degree of covering rough sets are given in this paper. A more perfect definition of lattice close-degree in covering rough sets based on neighborhood is given which satisfies all axioms for degree of approaching. We also discuss the property of lattice close-degree in covering rough sets.
Keywords :
fuzzy set theory; rough set theory; close optional principle; covering rough sets; fuzzy sets; lattice close degree; Computational intelligence; Fuzzy sets; Intelligent systems; Laboratories; Lattices; Numerical simulation; Pattern recognition; Rough sets; Security; Set theory; close-degree; covering rough sets; fuzzy sets; lattice close-degree;
Conference_Titel :
Computational Intelligence and Security, 2009. CIS '09. International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-5411-2
DOI :
10.1109/CIS.2009.94
