Aggregating preference rankings using an optimistic-pessimistic approach: Closed-form expressions

摘要: Abstract There exist in the literature several models to tackle problem of aggregating preferences rankings where each alternative is evaluated with most favorable scoring vector for it (which can be considered as an optimistic approach). Recently, Khodabakhshi and Aryavash (2015) have suggested a new model both pessimistic approaches are taken into account. In this paper we provide closed-form expressions scores alternatives when proposed by these authors used. The obtained allow us analyze suggest some small modifications.