The group decision making based on different preference of judgments is investigated. Based on the transformation between the triangular (trapezoidal) fuzzy number and 2-tuple linguistic, the different preference information is unified to 2-tuple linguistic information. It is illustrated by a numerical example that the proposed methods are effective.
['Zaiwu Gong', 'Jie Wu', 'Weijun Cui']
Group Decision Making Methods for Different Fuzzy Preferences with Uncertainty Number