Comparison of first aggregation and last aggregation in fuzzy group TOPSIS |
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Authors: | E. Roghanian J. RahimiA. Ansari |
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Affiliation: | Department of Industrial Engineering, K.N Toosi University of Technology, Tehran, Iran |
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Abstract: | The Technique for Order Preference by Similarity to the Ideal Solution (TOPSIS), one of the major multi attribute decision making (MADM) techniques, ranks the alternatives according to their distances from the ideal and the negative ideal solution. In real evaluation and decision making problems, it is vital to involve several people and experts from different functional areas in decision making process. Also under many conditions, crisp data are inadequate to model real-life situations, since human judgments including preferences are often vague and cannot estimate his preference with an exact numerical value. Therefore aggregation of fuzzy concept, group decision making and TOPSIS methods that we denote “fuzzy group TOPSIS” is more practical than original TOPSIS. |
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Keywords: | Group decision making (GDM) TOPSIS MADM Fuzzy set theory Supply chain management (SCM) |
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