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Nous donnons une interprétation des fonctions ordinales invariantes comme fonctions indépendantes des échelles pour l’agrégation sur des échelles ordinales finies. Plus précisément, nous montrons comment les fonctions ordinales invariantes agissent, à travers des représentants discrets, sur des échelles ordinales représentées par des chaînes finies. En particulier, cette interprétation permet de justifier d’une façon naturelle la propriété de continuité pour certaines fonctions ordinales invariantes., We give an interpretation of order invariant functions as scale independent functions for the aggregation on finite ordinal scales. More precisely, we show how order invariant functions can act, through discrete representatives, on ordinal scales represented by finite chains. In particular, this interpretation allows us to justify the continuity property for certain order invariant functions in a natural way.

We give an interpretation of order invariant functions as scale independent functions for the aggregation on finite ordinal scales. More precisely, we show how order invariant functions can act, through discrete representatives, on ordinal scales represented by finite chains. In particular, this interpretation allows us to justify the continuity property for certain order invariant functions in a natural way.

We define and investigate the scale independent aggregation functions that are meaningful to aggregate finite ordinal numerical scales. Here scale independence means that the functions always have discrete representatives when the ordinal scales are considered as totally ordered finite sets. We also show that those scale independent functions identify with the so-called order invariant functions, which have been described recently. In particular, this identification allows us to justify the continuity property for certain order invariant functions in a natural way.

We give an interpretation of order invariant functions as scale independent functions for the aggregation on ¯nite ordinal scales. More precisely, we show how order invariant functions can act, through discrete representatives, on ordinal scales represented by finite chains. In particular, this interpretation allows us to justify the continuity property for certain order invariant functions in a natural way.