Title
Bases of closure systems over residuated lattices
Abstract
We present results on bases of closure systems over residuated lattices, which appear in applications of fuzzy logic. Unlike the Boolean case, the situation is not straightforward as there are two non-commuting generating operations involved. We present a decomposition theorem for a general closure operator and utilize it for computing generators and bases of the closure system. We show that bases are not unique and may in general have different sizes, and obtain a constructive description of the size of a largest base. We prove that if the underlying residuated lattice is a chain, all bases have the same size. The problem of bases of closure systems arising in data with grades is described.Decomposition of closure operators into two simpler ones is found.Methods for computing bases are provided.
Year
DOI
Venue
2016
10.1016/j.jcss.2015.07.003
J. Comput. Syst. Sci.
Keywords
Field
DocType
fuzzy logic,closure operator,base
Residuated lattice,Discrete mathematics,Combinatorics,Closure operator,Lattice (order),Constructive,Fuzzy logic,Pure mathematics,Decomposition theorem,Operator (computer programming),Mathematics
Journal
Volume
Issue
ISSN
82
2
0022-0000
Citations 
PageRank 
References 
2
0.38
3
Authors
2
Name
Order
Citations
PageRank
Radim Belohlavek184257.50
Jan Konecny211517.20