JUDGES: A descriptive group decision support system for the ranking of items

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Abstract

A set of tools for group decision support are presented. Decision problems involving several decision makers, here-after called judges, that have to rank several alternatives, are considered. The toolbox is called JUDGES. It includes the four following procedures:

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    - a hierarchical representation of the judges allows to display the existing conflicts between groups of judges,

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    - enhanced box-plots representations of the alternatives are generated in order to detect those that are responsible for the major conflicts,

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    - specific advice is issued to each judge in order to reach more easily a consensus,

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    - a general framework for a pairwise group preference structure is proposed, and can be used to finalise the decision.

These procedures are embedded in an interactive software, implemented on micro-computer, which currently simulates the use on a network. Actual network implementation is foreseen in the near future. Several applications are presented and future developments are discussed.

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Cited by (24)

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    2016, European Journal of Operational Research
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    In the paper Ntouskas and Polemi (2012), a collaborative decision aid process that is based on multi-criteria decision aid approaches for risk management that aims to categorize security threats is presented. The system JUDGES, which uses a graphical tool in order to discover the consensus and conflicts among individual preferences, is proposed in the paper Colson and Mareschal (1994). The multi-criteria group decision support tool PLEXYS, which uses a 10-level scale for the evaluation of alternatives based on the criteria, is presented in the paper Dennis, George, Jessup, Nunamaker, and Vogel (1988).

  • MCDA and preference disaggregation in Group Decision Support Systems

    2001, European Journal of Operational Research
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    After describing the distinctive way of distributed decision making in Japanese organisations they develop a formal mathematical model, based in part in MCDM notions, to help the co-ordinator facilitate the group decision process. Colson and Mareschal (1994) introduced JUDGES, a descriptive GDSS for the co-operative ranking of alternatives. The system uses graphical representations to provide the decision makers with a clear view of their consensus and disagreements with the help of four Group (Visual) Decision Aids (GDAs) components.

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Gérard Colson is Professor of Microeconomics and Decision Analysis at ‘Hautes etudes Commerciales’ in Liège (Belgium), where he has been President of the Economic Department. He also teaches Management Science and Decision Aid at the Business School of the University of Liège. He is engineer and received a B.S. in Economics and a Ph.D. in Management Science, all from the University of Liège. His current research interests are multicriteria decision aid, portfolio management, decision and information theory, risk management. He is co-author of two books: Models and Methods in Multiple Criteria Decision Making (Pergamon, 1989), and Uncertain Prospects Ranking and Portfolio Analysis under the Conditions of Partial Information (Verlag Anton Hain, 1980). His articles have appeared in Computers and Operations Research, European Journal of Operational Research, Mathematical Modelling, Belgian Journal of Operationa Research, Foundations of Control Engineering, Gestion 2000. Several times, he has been Guest editor.

Bertrand Mareschal is Assistant at the Solvay Business School of the Université Libre de Bruxelles (Brussels, Belgium) where he teaches statistics and operational research. He graduated in Mathematics in 1983, in Actuarial Science in 1986 and received a Ph.D. in 1989, all from the Université Libre de Bruxelles. His current research interests include multiple criteria and group decision aid, decision support systems and the use of quantitative methods in finance. He has published papers in European Journal of Operational Research, Journal of the Royal Statistical Society, Mathematical and Computer Modelling, INFOR, Actualité Economique, Cahiers du C.E.R.O., Revue de la Banque.

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