Search

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.ejor.2005.05.004 Byline: Raymond Bisdorff (a), Marc Pirlot (b), Marc Roubens (b) Keywords: Decision making; Outranking methods; Choice; Kernel; Digraphs; Valued relations; Fuzzy sets Abstract: We explore the extension of the notion of kernel (independent, dominant or absorbent, non-empty subset) of a digraph to valued graphs (or valued relations). We define various natural extensions and show the relationship between them. This work has potential interest for applications in choice decision problems. Author Affiliation: (a) Faculty of Law, Economics and Finance, University of Luxembourg, Avenue de la FaiA[umlaut]encerie 162a, L-1511 Luxembourg, Luxembourg (b) Faculte Polytechnique de Mons, 9, rue de Houdain, B-7000 Mons, Belgium Article History: Received 16 November 2002; Accepted 13 May 2005

An Electre-like approach is proposed for clusting judges from certain pairwise proximities in prefernce judgments. Movie critics are picked as a practical application of the clustering concept.

A study has been conducted to investigate considerations to decision problems of an intrinsically repetitive nature, such as regular planning and scheduling problems, or online production control problems. The approach used in this study works towards a communicative clarification, where the two involved systems, the artificial formal decision systems and the human expert decision maker work on a common understanding of the problem and search for satisfactory problem-solving strategies.

ABSTRACT We propose an indirect approach for assessing criteria-importance weights from overall outranking statements that a decision maker may acknowledge in a multiple-criteria decision aid process. Our approach takes advantage of the bipolar characteristic valuation of the overall outranking and the stability of its associated median-cut, crisp outranking relation. Numerical criteria-importance weights are inferred with the help of a mixed-integer linear programming model for which we present tests results under different configurations and tunings. Copyright © 2013 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]

ABSTRACT We introduce a bipolarly extended veto principle-a positive, as well as negative, large performance differences polarization-which allows us to extend the definition of the classical outranking relation in such a way that the identity between its asymmetric part and its codual relation is preserved. Copyright © 2012 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]