A new similarity measure between type-2 fuzzy numbers and fuzzy risk analysis

Abstract

In this paper, we present a revised similarity measure based on<br />Chen-and-Chen's similarity measure for fuzzy risk analysis. The revised<br />similarity measure uses the corrected formulae to calculate the centre of<br />gravity points, therefore it is more effective than the Chen-and-Chen's<br />method. The revised similarity measure can overcome the drawbacks of the<br />existing methods. We have also proposed a new similarity measure between type-2<br />fuzzy numbers and a method for handling fuzzy risk analysis problem.