Abstract EN:

This work explores the potential applications of semantic web and knowledge management technologies for e-learning systems for accessing courses. It particularly addresses the difficult problem of reusing existing resources. In this scope, we propose a methodology and an associated system (QBLS) relying on cutting-edge semantic web tools and formalisms, that particularly develops three aspects: Reusing existing pedagogical resources through a process called "semantization". Pedagogical content is semi-automatically annotated with ontological concepts, from several points of view (domain, pedagogy, structure). It aims at contextualizing the material with regard to the teacher's conceptualization and pedagogical strategy. Exploiting annotated pedagogical resources in dynamic web interfaces. We show how semantic web technologies efficiently perform inferences based on ontological knowledge to personalize and adapt courses. The interest of semantic web standards (OWL, RDF, SPARQL) is highlighted in a practical perspective, relying on the deployment of the semantic search engine Corese. Tracking learner activity and analysis of this activity. We explore the potential of graphic based visualization and inferences to manually or automatically analyze activity traces on a semantized course. The theoretical proposal is supported by our implementation of the Question Based Learning System where learning resources available on the web are reused, annotated and exploited in real world experiments using semantic web technologies. The practical examples mentioned in this work are illustrated by two experiments conducted at the EPU of Nice Sophia-Antipolis.