Interval type-2 fuzzy sets, each of which is characterized by the footprint of uncertainty, are a very useful means to depict the linguistic information in the process of decision making. In this article, we investigate the group decision making problems in which all the linguistic information provided by the decision makers is expressed as interval type-2 fuzzy decision matrices where each of ...

abstract— in this paper, a new extended method of multi criteria decision making based on fuzzy-topsis theory is introduced. fuzzy mcdm algorithm for determining the best choice among all possible choices when the data are fuzzy is also presented. using a new index leads to procedure for choosing fuzzy ideal and negative ideal solutions directly from the fuzzy data observed alternatives.in this...

Hesitant fuzzy sets have a unique characteristic that its basic element could manifest the assessment values of different decision makers on same option under certain criterion. Base-criterion method is very significant tool for calculating weights criteria in multiple decision-making. In this paper, we developed novel approach hesitant BCM based multiplicative preference relation group making....