Hamid Azzoune

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Recently, the study of the skyline and its variants has received considerable attention in various applications that require decision making and personalized services. The skyline is essentially a set of the most interesting (not dominated) tuples in the queried database. They are based on the concept of Pareto dominance. The skyline computation may lead to(More)
In this paper we present an approach for automatic web service composition. The process of composition considered includes two layers; the discovery layer which aims to generate a composition schema, and the execution layer which uses a multi-agent system to select web services and execute the composite service. The main focus of this work is on the(More)
Résumé. Les requêtes skyline constituent un outil puissant pour l’analyse de données multidimensionnelles et la décision multicritère. En pratique, le calcul du skyline peut conduire à deux scénarios : soit (i) un nombre important d’objets sont retournés, soit (ii) un nombre réduit d’objets sont retournés, ce qui peut être insuffisant pour la prise de(More)
The fast growing number of alternative web services that provide the same functionality but differ in quality parameters and their continuous updating pose a new challenge for service composition: selecting proper services that achieve a composition with the best user desired preferences. However, the total number of possible compositions is often extremely(More)
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