Intuitionistic Fuzzy Rough Relational Database Model
In this paper, the new intuitionistic fuzzy rough relational model that expands the traditional model with the ability to represent indiscernible and imprecise information is presented. The authors utilize the notion of indiscernibility from rough set theory coupled with the idea of membership and non-membership values from intuitionistic fuzzy set theory to represent uncertain information in a manner that maintains the degree of uncertainty of information for each tuple of the original database and also those resulting from queries. First, they design their database using some type of semantic model and then use a variation of the entity-relationship diagram i.e. intuitionistic fuzzy rough E-R diagram.