Ordinal ranking and intensity of preference: A linear programming approach
Management Science
Aggregation of partial ordinal rankings: an interval goal programming approach
Computers and Operations Research
A preference aggregation method through the estimation of utility intervals
Computers and Operations Research
Weighting Individual Opinions in Group Decision Making
MDAI '07 Proceedings of the 4th international conference on Modeling Decisions for Artificial Intelligence
An approach to group ranking decisions in a dynamic environment
Decision Support Systems
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This paper deals with the problem of aggregating individual preferences in order to obtain a social order. In particular, a preference aggregation procedure is proposed for those cases in which the decision-makers express their preferences by means of a ranking of alternatives. Among the most commonly applied methods for this purpose are those based on distance measures between individual and collective preferences, which look for the solution that minimizes the disagreement across decision-makers. This class of procedures may include weighting factors in order to emphasize the relative importance of the individuals. In the model proposed here, a weighted disagreement function that computes the differences between alternatives differentiating the rank positions of the alternatives is developed. The proposed disagreement function weighs the differences between orders depending on the ordinal position that the alternative occupies.