2 research outputs found
A Comparison of Distinct Consensus Measures for Group Decision Making with Intuitionistic Fuzzy Preference Relations
Intuitionistic fuzzy preference relation (IFPR), which express expertsr preferences from the preferred, the nonpreferred
and the indeterminate aspects, has turned out to be an efficient tool in describing the rough and subjective
opinions of experts. This paper focuses on the consensus measures for group decision making (GDM) in which all
the experts use the IFPRs to express their preferences. Firstly, we give a brief analysis over the framework, the
consistency checking process, and the selection process of intuitionistic fuzzy GDM. After that, two novel
consensus measures, namely, the outranking flow based consensus measure and the ordinal consensus measure, are
proposed to help an analyst to describe the degree of agreement among the experts in a group. In addition, an indepth
comparison is made from both theoretical and empirical points of view over our proposed consensus
measures against the existing ones. Furthermore, a numerical example is given to show the difference among these
distinct consensus measures. Finally, based on the ordinal consensus measure, a procedure is given to help the
decision maker yield a final solution for GDM problems