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Scientific research teams have immense valuable knowledge that need to be managed. Organizing scientific contributions of team members constitutes a major challenge for the monitoring of knowledge evolution, team member’s competences discovery, and facilitating information retrieval processes. However, performing manual annotations is often time consuming and labor-intensive task, especially in case...
In this paper, we introduce the IaaS "PriArmor" (Privacy Armor) solution for privacy preservation in the cloud. This approach allows the data owner (tenant and/or end users) to define his privacy requirements and to include regulations policy based on a privacy ontology model that captures all privacy concepts related to the data access and usage in the cloud. The PriArmor approach allows...
Medical data are crucial for providing reliable mobile health services. However, its reliability may be degraded due to internal factors related to performance variations of mobile technologies used in the application and other external ones such as the environmental ones. This paper addresses this problem by proposing an ontology-based approach to deal with data and reliability management in mobile...
With the growth of the number of Web services published over Internet, identifying composite services by taking into account both functional and non-functional requirements of end users has become a real challenge that needs to be addressed. This challenge is aggravated in the case of situations requiring adaptation to user context. To overcome these challenges, we propose a solution that enables...
The lack of semantics in WS-SecurityPolicy (WS-SP) hampers the effectiveness of matching security policies. To resolve this problem, we present a semantic approach for specifying and matching web service security policies. The approach consists in the transformation of WS-SP into an OWL-DL ontology and the definition of a set of rules which automatically generate semantic relations that can exist...
In the context of Publish/Subscribe systems (Pub/Sub), Peer-to-Peer (P2P) solutions based on Distributed Hash Tables (DHT) offer efficient functionalities such as event routing flexibility, scalability, load balancing and fault tolerance. For event routing, it uses event identifiers computed by event encryption. Likewise, Pub/Sub systems based on ontologies offers well adapted semantic expression...
Service Level Agreements (SLA) management has been the subject of intensive research. However, the existing protocols for SLA negotiation and generation have not addressed the issue of the knowledge difference between clients and the providers. In this paper, we present the implementation of our automatic matching approach between the client and the provider in order to bridge the gap between their...
Handling context-aware dynamically adaptable architectures contributes to the design of self-configuring software systems. Dealing with such a problem for communicating systems is even more challenging since adaptation should address simultaneously the different communication levels. In this paper, we address this problem by providing a model-based, rule-oriented approach that supports the adaptation...
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