Extension of VIKOR method for multi-criteria group decision making problem with linguistic information |
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Authors: | Yanbing Ju Aihua Wang |
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Affiliation: | 1. School of Management and Economics, Beijing Institute of Technology, Beijing 100081, China;2. Graduate School of Education, Peking University, Beijing 100871, China |
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Abstract: | A new method is proposed to solve multi-criteria group decision making problems in which both the criteria values and criteria weights take the form of linguistic information based on the traditional idea of VIKOR method. Firstly, the linguistic criteria weights given by all decision makers are transformed into trapezoidal fuzzy numbers, and then aggregated and defuzzified to crisp values. Secondly, the individual linguistic decision matrix given by each decision maker (DM) is transformed into 2-tuple linguistic decision matrix, and then aggregated into collective 2-tuple linguistic decision matrix by 2-tuple linguistic arithmetic mean operation. Thirdly, the 2-tuple linguistic values (Si,αi),(Ri,αi) and (Qi,αi) are calculated by defining the 2-tuple linguistic positive ideal solution (TL-PIS) and 2-tuple linguistic negative ideal solution (TL-NIS). Furthermore, the compromise solution can be obtained. Finally, a numerical example is used to illustrate the application of the proposed approach, and the method is verified by comparing the evaluation result with that of 2-tuple linguistic TOPSIS (TL-TOPSIS) method. |
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Keywords: | Multi-criteria group decision making 2-Tuple linguistic approach Linguistic variable Extended VIKOR method Fuzzy set |
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