An alternative calculation of the consensus degree in group decision making problems

Date
2017-12-12
Authors
del Moral, Maria Jose
Chiclana, Francisco
Tapia Garcia, Juan Miguel
Herrera-Viedma, Enrique
Journal Title
Journal ISSN
ISSN
Volume Title
Publisher
Elsevier
Peer reviewed
Yes
Abstract
In a problem of group decision-making it is desirable to obtain a solution with the highest possible degree of agreement –consensus- among the participants. For this aim, it is necessary to have tools that facilitate the calculation of the degree of consensus in a reliable way. This study proposes a consensus index based on a statistical measure of variability of the preferences expressed by the experts in a group decision-making process and performs a specific comparative study between this index and several known consensus measures. The analysis shows that in this specific situation the proposed measure behaves in a similar way to the previous ones and it could play their role in a process of decision making in group.
Description
The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.
Keywords
Group decision making, fuzzy preferences, consensus, decision support rules, distance functions, mean absolute deviation
Citation
Del Moral, M.J., Chiclana, F., Tapia Garcia, J.M. and Herrera-Viedma, E. (2017) An alternative calculation of the consensus degree in group decision making problems. Procedia Computer Science, 122, pp. 735-742
Research Institute
Institute of Artificial Intelligence (IAI)