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—In the context of additive multiattribute aggregation, we address problems with ordinal information, i.e., considering a ranking of the weights (the scaling coefficients). Several rules for ranking alternatives in these situations have been proposed and compared, such as the rank-order-centroid weight, minimum value, central value, and maximum regret… (More)

The additive model of multiattribute value (or utility) theory is widely used in multicriteria choice problems. However, often it is not easy to obtain precise values for the scaling weights or the alternatives' value in each function. Several decision rules have been proposed to select an alternative under these circumstances, which require weaker… (More)

K enneth Arrow's work on social welfare proposed a set of conditions that a function to aggregate ordinal preferences of the members of a group should satisfy, proving that it was not possible to satisfy all these assumptions simultaneously. Later, Ralph Keeney adapted these conditions and proposed a cardinal utility axiomatization for the problem of… (More)

Keywords: Additive group utility Incomplete information Ordinal preference information Independence of irrelevant alternatives a b s t r a c t We present a comprehensive computational study on the effects of providing different forms of incomplete preference information in additive group decision models. We consider different types of information on… (More)

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