A possibilistic logic view of preference queries to an uncertain database
Résumé
The paper shows how three different types of hierarchical queries involving qualitative preference and leading to totally ordered results, which have been recently considered in the setting of division operation, can be conveniently encoded in possibilistic logic. This enables such a handling of preference queries to be interfaced with a recently proposed approach for dealing with pieces of data associated with certainty levels represented in the framework of possibilistic logic.