The Concept of Approximation Based on Fuzzy Dominance Relation in Decision-Making

摘要

The method for decision-making system that derives from the combination of rough sets and fuzzy sets has been presented, discussing a multicriteria classification that differs from usual classification problems, the main change is the substitution of the indiscernibility relation by a dominance relation. Proposing the idea of fuzzy dominance relation for decision-making, and the concept of L-fuzzy set is given. It builds up a rough approximation of upward and downward cumulated sets by fuzzy dominance relation.