Abstract :
The objective of this work is to present a triangular interval type-
2 (TIT2) intuitionistic fuzzy sets and their corresponding aggregation opera-
tors, namely, TIT2 intuitionistic fuzzy weighted averaging, TIT2 intuitionistic
fuzzy ordered weighted averaging and TIT2 intuitionistic fuzzy hybrid aver-
aging based on Frank norm operation laws. Furthermore, based on these op-
erators, an approach to multi-criteria decision-making, in which assessments
are in the form of TIT2 intuitionistic fuzzy numbers has been developed. A
practical example to illustrate the decision-making process has been presented
and compared their results with the existing operator results.
Keywords :
Aggregation operators , Type-2 fuzzy set , Type-2 intuitionistic fuzzy sets , Triangular interval type-2 intuitionistic fuzzy sets , Multi criteria decision-making
