Neighborhood rough sets are widely used as an effective tool to deal with numerical data.
However, most of the existing neighborhood granulation models cannot well describe the …

As an extension of classical rough sets, the concept of λ-rough sets is introduced in
information systems. We put forward the notions of λ-indiscernibility relation and λ …

AbstracVVt A novel concept of α-rough fuzzy sets is proposed as a generalization of rough
fuzzy sets in information systems. A pair of rough fuzzy approximation operators is presented …

Connectivity incorporates a significant role in various abstract and applied mathematical
modeling and decision analysis. Graphical networks can be studied more precisely in …

In covering-based rough sets, many basic issues are related to minimal and maximal
descriptions. For a covering approximation space with a large cardinal, it would be tedious …

This paper aims to consider the relationships between rough sets, fuzzy sets and distributive
lattices. In fact, we consider a distributive lattice as a universal set and we apply the notion of …

Recently, various types of single valued neutrosophic (SVN) rough set models were
presented based on the same inclusion relation. However, there is another SVN inclusion …

In this paper, we investigate the relationship among soft sets, rough sets, fuzzy sets and
rings. The notion of soft fuzzy rough rings (ideals) of rings is introduced, which is an …