Sonia Ben Mokhtar

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Pervasive computing environments are populated with networked software and hardware resources providing various functionalities that are abstracted, thanks to the Service Oriented Architecture paradigm, as services. Within these environments, service discovery enabled by service discovery protocols (SDPs) is a critical functionality for establishing ad hoc(More)
Pervasive computing environments are populated with networked services, i.e., autonomous software entities, providing a number of functionalities. One of the most challenging objectives to be achieved within these environments is to assist users in realizing tasks that integrate on the fly functionalities of the networked services opportunely according to(More)
Service-oriented architectures, and notably Web Services, are becoming an incontrovertible paradigm for the development of applications in pervasive computing environments, as they enable publishing and consuming heterogeneous networked software and hardware resources. Combined with Semantic Web technologies, in particular ontologies, Web services’(More)
This paper proposes Habit, an efficient multi-layered approach to content dissemination in Delay Tolerant Networks (DTN) that leverages information about nodes' colocation (physical layer) and their social network (application layer). More precisely, the regularity of users' colocation is learned based on historical colocation observations; also, the users'(More)
A major challenge in pervasive computing environments is to provide users with complex, context-sensitive applications, dynamically composed from networked services. In this paper, we present an approach to the dynamic, context-aware composition of services to perform user tasks, i.e., software applications abstractly described on the user’s handheld(More)
Services are developed separately and without knowledge of all possible use contexts. They often mismatch or do not correspond exactly to the end-user needs, making direct composition without mediation impossible. In such a case, software adaptation can support composition by producing semi-automatically new software pieces called adaptors. Adaptation(More)
Due to the large success of wireless networks and portable devices, the pervasive computing paradigm is becoming a reality. One of the most challenging objectives to be achieved in pervasive computing environments is to allow a user to perform a task by composing on the fly the environment’s service and resource components. However, existing approaches(More)
Web services are becoming an incontrovertible paradigm for the development of large scale distributed systems. Combined with semantic Web technologies, in particular ontologies, Web services capabilities can be unambiguously interpreted and automatically used. Nevertheless, efficient matching of semantic Web service capabilities remains an open issue(More)
Due to the large success of wireless networks and handheld devices, the pervasive computing paradigm is becoming a reality. One of the most challenging objectives to be achieved in pervasive computing environments is to assist users in realizing tasks anytime, anywhere, on the fly, by composing functionalities provided by the networked services of the(More)