Danièle Hérin

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Within the framework of course-assisted creation, we are developing a prototype whose goal will be to enrich an ontology of teaching concepts. To do that, we automatically query search engines with key words extracted from pages that were previously analysed (beginning with an ontology which treats on a hierarchical basis the first keywords). This analysis(More)
The objective of our work is to provide some aid to the maintenance of a web site. The webmaster would like to get a semantic follow-up of the users' browsing, but he only has at disposal a set of statistical tools that indicate the frequency of one page visits but on no account by semantic aggregation of concepts. In this article, after having presented(More)
This paper addresses the architectural foundations of dynamic workflows in distributed multi-agent systems (MAS) integrated in Grid context. The purpose is to design an architecture at the same time taking into consideration tasks dependencies among agents, adaptation with respect to historic lessons learnt from past behaviour (memory) and the autonomous(More)
In the process of extracting knowledges, an important step is to complete request which need to extract information. In the context of Web Services, completing a complex request means calling many Web Services. They are characterized by their heterogeneity since they are built independently from the context of their use. To compose them, we need to consider(More)
L'annotation se distingue de l'indexation automatique par l'uti-lisation d'une ou plusieurs ontologies qui définissent un domaine global de référence permettant de cadrer et de normaliser les annotations effectuées, par ailleurs une ressource annotée doit l'ˆ etre non pas par une liste de mots-clefs, mais bien par une ou plusieurs ontologies.(More)