Type-2 Fuzzy Contingency Analysis Based on Order of Two-Dimensional Fuzzy Number Vectors

Abstract

The authors defined type-2 fuzzy contingency table concerned two variable, and proposed fuzzy portfolio analysis method that applied it. Also, we have reported questionnaire analysis on classes as application of it. In this paper, we propose a method to compare the order relation of 2D fuzzy vectors by 1D reduction. Furthermore, we show its effectiveness through ordering improvement items in fuzzy portfolio analysis.