An Iterative Approach for Estimation of Efficiency by Weighted Distance

In group decision analysis, numerous approaches have been suggested in an attempt to solve the problem of aggregation of individual fuzzy opinion to form a group consensus as the basis of a group decision. if the inputs and outputs are fuzzy quantity, the decision making units can not be easily evaluated and ranked using the obtained efficiency scores. in this article, a kind of modified idea based on interactive method is introduced for ranking of decision making units with fuzzy data by weighted distance.