Some new distances between intuitionistic fuzzy sets

In the application of intuitionistic fuzzy sets, similarity measures play very important roles. But they bear a relation to distances in many cases. Therefore, it is significant to study the methods of measuring distances between intuitionistic fuzzy sets. In this paper, we firstly present a new formula which can unify the distances suggested by Atanassove and Grzegorzewski. Then we propose another group of distances between intuitionistic fuzzy sets. An application instance is showed finally.