Author's Name:	Surapati Pramanik & Kalyan Mondal
Subject Area:	Science and Engineering
Subject	Mathematics
Section	Research Paper

Tangent similarity measure, Degree of hesitancy, Decision making, Medical diagnosis

In this paper, the tangent similarity measure of intuitionistic fuzzy sets is proposed and some of its properties are studied. The concept of the tangent similarity measure of intuitionistic fuzzy sets is a decision making tool which is characterized by the degree of membership function, degree of non-membership function and degree of hesitancy (sum of this three components is equal to one). Finally, using this proposed approach, an application on medical diagnosis is provided to show the applicability and effectiveness of the proposed approach.