Catherine Faron-Zucker

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Everyone agrees that user interactions and social networks are among the cornerstones of " Web 2.0 ". Web 2.0 applications generally run in a web browser, propose dynamic content with rich user interfaces, offer means to easily add or edit content of the web site they belong to and present social network aspects. Well-known applications that have helped(More)
This paper presents an ontology-based approach for web querying, using semantic metadata. We propose a query language based on ontologies and emphasize its ability to express approximate queries, useful for an efficient information retrieval on the web. We present the Corese search engine dedicated to RDF(S) metadata and illustrate it through several(More)
RÉSUMÉ. Nous présentons dans cet article un EIAH conçu et développé selon des méthodes et techniques du web sémantique. Nous avons adopté une approche d'acquisition et de gestion des connaissances pour expliciter la stratégie pédagogique d'un enseignant, acquérir des ressources pédagogiques à partir d'un document de cours initial, et organiser ces(More)
6i†‡…hp‡ In this paper, we present a method for learning ontologies from RDF annotations of Web resources by systematically generating the most specific generalization of all the possible sets of resources. The preliminary step of our method consists in extracting (partial) resource descriptions from the whole RDF graph gathering all the annotations. In(More)
In this paper we present the KGRAM abstract machine dedicated to querying knowledge graphs. It is the result of an abstraction process we performed to reach a generic solution to the problem of querying graphs in various models. We identified high level abstract primitives that constitute the expressions of the query language and the interfaces of KGRAM for(More)
Griwes is an initiative to develop a common model and an open-source freeware platform shared by different graph-based frameworks. We provide an overview of its objectives, architecture and specifications. We detail some of the basic mathematical structures that are used to characterize the primitives for graph-based knowledge representation. We then(More)