This paper investigates basic research issues that need to be addressed in order to reuse learning objects in a flexible way. We propose an ontology based approach. Our ontology f...
Katrien Verbert, Joris Klerkx, Michael Meire, Jeha...
Pricing is considered a relevant way to control congestion and differentiate services in communication networks. Among all pricing schemes, auctioning for bandwidth has received a...
This paper studies the compressibility of RDF data sets. We show that big RDF data sets are highly compressible due to the structure of RDF graphs (power law), organization of URI...
We present an approach for building text visualizations that avoids using plug-ins or clients based on languages like Java. Instead we propose to make the search engine applicatio...
We perform a clustering of the Chilean Web Graph using a local fitness measure, optimized by simulated annealing, and compare the obtained cluster distribution to that of two mod...