Relaxation des Requêtes Skyline : Une Approche Centrée Utilisateur
Abstract
Skyline queries have gained much attention in the last decade and are proved to be valuable
for multi-criteria decision making. When computing the skyline, two scenarios may occur: either
(i) a huge number of skyline or (ii) a small number of returned objects which could be
insufficient for the user needs. In this paper, we tackle the second problem and propose an
approach to deal with it and to make the skyline more permissive. A new fuzzy variant of
dominance relationship is then introduced. Furthermore, an efficient algorithm to compute the
relaxed skyline is proposed. Extensive experiments are conducted to demonstrate the effectiveness
of our approach and the performance of the proposed algorithm.