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Using qualitative reasoning in modelling consensus in group decision-making

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Roselló Saurí, LlorençMés informació
Prats Duaygues, FrancescMés informacióMés informació
Sánchez Soler, MonicaMés informacióMés informacióMés informació
Agell Jané, Núria
Document typeConference report
Defense date2009
PublisherJure Zabkar, Ivan Bratko
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
Ordinal scales are commonly used in rating and evaluation processes. These processes usually involve group decision making by means of an experts’ committee. In this paper a mathematical framework based on the qualitative model of the absolute orders of magnitude is considered. The entropy of a qualitatively described system is defined in this framework. On the one hand, this enables us to measure the amount of information provided by each evaluator and, on the other hand, the coherence of the evaluation committee. The new approach is capable of managing situations where the assessment given by experts involves different levels of precision. The use of the proposed measures within an automatic system for group decision making will contribute towards avoiding the potential subjectivity caused by conflicts of interests of the evaluators in the group.
CitationRosello, L. [et al.]. Using qualitative reasoning in modelling consensus in group decision-making. A: 23rd International Workshop on Qualitative Reasoning. "23rd International Workshop on Qualitative Reasoning". Ljubljana: Jure Zabkar, Ivan Bratko, 2009, p. 98-103. 
URIhttp://hdl.handle.net/2117/10002
Publisher versionhttp://www-ma2.upc.edu/lrosello/Site/publications_files/QR09Roselloetal.pdf
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