Approaches to Multiple Attribute Decision Making with the Intuitionistic Fuzzy Information and Their Applications to User Activities Reliability Evaluation

In this paper, some operations on the intuitionistic fuzzy sets, such as Hamacher sum, Hamacher product are introduced, and further develop the intuitionistic fuzzy Hamacher correlated averaging (IFHCA) operator. The prominent characteristics of the operators are that they do not only consider the importance of the elements or their ordered positions, but also reflect the correlation among the elements or their ordered positions. We have applied the IFHCA operators to multiple attribute decision making with intuitionistic fuzzy information.