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One issue for context-aware applications is to identify without delay situations requiring reactions. The identification of these situations is computed from both dynamic context information and domain specific knowledge. This identification is the output of a process involving context interpretation, aggregation and deduction. In smart environments, these treatments have to be efficient since they...
Existing evaluation methods either investigate whether ontologies are “fit for purpose”, or focus on evaluating consistencies of the data in regard to the axioms defined in the ontologies. In this paper, we focus on how to evaluate the consistency of ontology with respect to taxonomic relationships, and we suggest a new measure to evaluate the taxonomic consistency of an ontology. As the semantic...
Privacy protection in Service-Oriented Architecture (SOA) is an open problem. As privacy protection can be considered as a contractual issue, the solution for the problem of privacy protection in SOA requires the use of electronic contracts. This is important, as the service consumer's confidence of the protection of their privacy is a factor for the success of electronic services (e-services). This...
The area of knowledge management (KM) has been addressed with a considerable amount of research in order to develop concepts and technologies for the retrieval of information and knowledge out of a set of heterogeneous data sources. Especially when we deal with files which contain unstructured information, i.e. documents, it is still a huge challenge to classify them automatically into certain domain-dependant...
A large portion of the Semantic Web is expected to be generated from the hidden Web of relational databases. The methods to translate relational content to OWL/RDF are reasonably straightforward, however these methods tend to lose most, if not all, important integrity constraints that are present in the relational data. In this paper, we present a para-consistent logic based method to maintain several...
User initiated interactions in social networks and web services generate Collective Intelligence that is exploited in many web applications to shape output toward a better adaptation of users' information needs. Most of data involved in these interactions consists of multimedia information that needs to be identified, described and managed efficiently in order to be retrieved and shared on the web...
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