An algebraic characterisation of fuzzy rough sets
Anna Maria Radzikowska, E.E. Kerre · 2005
We present an algebraic approach to fuzzy generalisation of rough sets. We take an arbitrary residuated lattice L as a basic algebraic structure. The L-fuzzy rough sets are defined using the product operator and its residuum provided by the residuated lattice L. Depending on classes of binary fuzzy relations, we define several classes of L-fuzzy rough sets and show properties of these structures.