Interval-valued intuitionistic fuzzy rough sets based on coverings
Chen Meiwei · Computer Engineering and Applications Journal · 2013
Rough approximation of an interval-valued intuitionistic fuzzy set is established based on a crisp covering approximation space.The interval-valued intuitionistic fuzzy rough set models based on a interval-valued intuitionistic fuzzy covering are presented by the concept of interval-valued intuitionistic fuzzy covering.Some properties of the interval-valued intuitionistic fuzzy rough sets based on covering are discussed.