Multi-criteria decision-making method based on aggregation operators for intuitionistic linguistic fuzzy numbers

Abstract

Intuitionistic linguistic fuzzy numbers,as well as their operational laws,expected values,score function and accuracy function are defined.Some intuitionistic linguistic fuzzy aggregation operators are proposed,including weighted arithmetic averaging operator and weighted geometric averaging operator.For fuzzy multi-criteria decision making problems,in which the criteria values are intuitionistic linguistic fuzzy numbers,an approach based on intuitionistic linguistic fuzzy aggregation operators is proposed.By using these aggregation operators,criteria values are aggregated and integrated intuitionistic linguistic fuzzy numbers of alternatives are attained.By comparing score function and accuracy function values of integrated fuzzy numbers,a ranking of the whole alternative set can be attained.Analysis of an example shows the feasibility and effectiveness of the method.