Fuzzy contingency table analysis based on t-norm and its application

Abstract

The authors have defined a type-2 fuzzy contingency table for contingency analysis and proposed a fuzzy portfolio analysis method based on it. In the conventional fuzzy contingency table, the intersection of fuzzy sets is defined by min operation, but we replace it with t-norm and propose a new type-1 fuzzy contingency table. In this paper, we redefine fuzzy contingency table using t-norm, and furthermore, we introduce fuzzy portfolio analysis as an application of the technique.