Fuzzy multiple objectives decision making based on vague sets

A novel approach to fuzzy multiple objectives decision making based on vague sets is presented in this paper. Firstly, decision matrix is translated into objective-grade-membership matrix, then the vague evaluation of each alternative is obtained by computing the sets of objectives being in favour, against and neutral. Finally, all alternatives are ranked using a score function and the best one is selected. An example shows that the proposed method is effective.