A Comparison of Similarity Measures of Intuitionistic Fuzzy Sets

This paper compared the properties of several measures of similarity of IFSs and provides a new definition of equilibrium line of a fuzzy set. This study aims to highlight the main theoretical and computational properties of the measures under study. It is show that several properties are common to all measures and some properties are not for all of them. This investigation is important due to the fact that it can provide us some useful information to select a suitable similarity measure in applications of IFSs.