Manel Khodja

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In this paper, we first present an attack-graph based estimation of security risk and its aggregation from lower level components to an entire service. We then presents an initiative towards appreciating how the quality of service (QoS) parameters of a service may be affected as a result of fluctuations in the cyber security risk level. Because the service(More)
This paper presents two ACO algorithms for information retrieval. Unlike existing works, the proposed algorithms address the problem for large scale data sets. The algorithms and a classical information retrieval method have been implemented for comparison purposes. Experimentations have been conducted on Smart collections and random benchmarks. Numerical(More)
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