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In some group decision making problems of real life not only is significant to rank the alternatives but it also is important to measure how much consensus this solution conveys to the group. Due to this fact, in this work we propose a new methodology to measure the degree of consensus obtained by a group decision making process. To develop that approach, we define a class of consensus measures based...
A system that aggregates case-based linguistic decision rules using a hybrid of the dominance-based rough set approach (DRSA) and the Dempster-Shafer (DS) theory of evidence is proposed for multiple criterion-multiple participant sorting. First, DRSA is employed to estimate decision makers' (DMs) preferences by deducing linguistic decision rules from representative case sets evaluated by different...
The induced ordered weighted averaging (IOWA) operator takes as its argument pairs, called OWA pairs, in which one component is used to induce an ordering over the second components which are exact numerical values and then aggregated. In this paper, we develop an extended IOWA (EIOWA) operator, in which the second components are linguistic variables, and develop an extended OWA (EOWA) operator, which...
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