Granulating linguistic information in decision making under consensus and consistency
Autor:
Cabrerizo, Francisco Javier
; Morente-Molinera, Juan Antonio
; Pedrycz, Witold
; Taghavi, Atefe
; Herrera-Viedma, Enrique
Fecha:
01/07/2018Palabra clave:
Revista / editorial:
Expert Systems with ApplicationsTipo de Ítem:
Articulo Revista IndexadaResumen:
This study is concerned with group decision making contexts in which linguistic preference relations are used to provide the evaluations of results. On the one hand, granulation of linguistic terms, which are used as entries of the preference relations, is carried out for the purpose of dealing with the linguistic information. Formally, the problem is expressed as a multi-objective optimization task in which a performance index composed of the weighted averaging of the criteria of consensus and consistency is maximized via an appropriate association of the linguistic terms with information granules formed as intervals. On the other hand, once the linguistic terms are made operational by mapping them to the corresponding intervals, a selection process, in which the consistency achieved by each agent is also considered, is employed with intent to construct the solution to the decision problem under consideration. An experimental study is reported by demonstrating the main features of the proposed approach. Furthermore, some drawbacks and advantages are also analyzed.
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