Type 2 Fuzzy Sets: An Appraisal of Theory and Applications
Robert John · International Journal of Uncertainty Fuzziness and Knowledge-Based Systems · 1998
This paper provides a guide and tutorial to type 2 fuzzy sets. Type 2 fuzzy sets allow for linguistic grades of membership thus assisting in knowledge representation. They also offer improvement on inferencing with type 1 sets. The various approaches to knowledge representation and inferencing are discussed, with worked examples, and some of the applications of type 2 sets are reported.