A Mixed-Data Evaluation in Group TOPSIS with Differentiated Decision Power

Hsu-Shih Shih ()
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Hsu-Shih Shih: Tamkang University

Group Decision and Negotiation, 2016, vol. 25, issue 3, No 4, 537-565

Abstract: Abstract This main objective of this paper is to provide decision support for mixed data in group Technique for Order Preference by Similarity to Idea Solution (TOPSIS) with differentiated decision power. We use a signum function to compare the ordinal performance of alternatives on any qualitative criterion, or the partial information provided by decision makers. The proposed process for ordinal information is uniformly coherent with the traditional TOPSIS steps, preserving the characteristic of distance-based utilities. Ordinal weights are also considered herein, and the decision power of the group members is formulated by their weights under an agreement in the group. Two examples demonstrate that the proposed approach has some benefits and achieves robustness with two types of sensitivity analyses. Some discussions and their limitations to the approach are also provided.

Keywords: TOPSIS; Ordinal information; Decision power; Group decision making; Mixed-data (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1007/s10726-015-9451-9

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