Three-Way Decisions Based on Intuitionistic Fuzzy Sets

摘要

The intuitionistic fuzzy set is introduced to incomplete information systems, in which the membership and non-membership degrees that an object belongs to a concept are constructed by the rough set approximations based on similarity relation. Then, by combining the intuitionistic fuzzy set and three-way decisions, we proposed two evaluation functions to generate decision rules and make three-way decisions in incomplete information systems.