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QoS-Based Service Selection and Ranking with Trust and Reputation Management

Summary: QoS-Based Service Selection and Ranking with
Trust and Reputation Management
Le-Hung Vu, Manfred Hauswirth, and Karl Aberer
School of Computer and Communication Sciences,
Ecole Polytechnique F´ed´erale de Lausanne (EPFL),
CH-1015 Lausanne, Switzerland
{lehung.vu, manfred.hauswirth, karl.aberer}@epfl.ch
Abstract. QoS-based service selection mechanisms will play an essen-
tial role in service-oriented architectures, as e-Business applications want
to use services that most accurately meet their requirements. Standard
approaches in this field typically are based on the prediction of services'
performance from the quality advertised by providers as well as from
feedback of users on the actual levels of QoS delivered to them. The
key issue in this setting is to detect and deal with false ratings by dis-
honest providers and users, which has only received limited attention
so far. In this paper, we present a new QoS-based semantic web ser-
vice selection and ranking solution with the application of a trust and
reputation management method to address this problem. We will give
a formal description of our approach and validate it with experiments
which demonstrate that our solution yields high-quality results under


Source: Aberer, Karl - Faculté Informatique et Communications, Ecole Polytechnique Fédérale de Lausanne


Collections: Computer Technologies and Information Sciences