The new Semantic Web recommendations for RDF, RDFS and OWL have, at their heart, the
RDF graph. Jena2, a second-generation RDF toolkit, is similarly centered on the RDF graph …

Personalized support for learners becomes even more important, when e-Learning takes
place in open and dynamic learning and information networks. This paper shows how to …

RDF/XML does not layer RDF on top of XML ina useful way. We use a simple direct
representation of the RDF abstract syntax in XML. We add the ability to name graphs, noting …

Traditional adaptive hypermedia systems have focused on providing adaptation functionality
on a closed corpus, while Web search interfaces have delivered non-personalized …

ActiveMath is a complex web‐based adaptive learning environment with a number of
components and interactive learning tools. The basis for handling semantics of learning …

Automatic course generation is a very important area of research with numerous practical
applications in e-learning. It has been studied since the 1980s within the fields of intelligent …

The paper proposes a framework for building ontology-aware learning object (LO) content.
Previously ontologies were exclusively employed for enriching LOs' metadata. Although …

The semantic web is envisioned as an evolving set of local ontologies that are gradually
linked together into a global knowledge network. Many such local “application” ontologies …

This paper introduces a new approach of ontology matching named axiom-based ontology
matching. As this approach is founded on the use of axioms, it is mainly dedicated to …

Selecting appropriate learning services for a learner from the large number of
heterogeneous knowledge sources is a complex and challenging task. This paper pre sents …