Ontop at Work.
Mariano Rodríguez-Muro, Roman Kontchakov, Michael Zakharyaschev · OWL: Experiences and Directions · 2013
We describe the architecture of the OBDA systemOntop and analyse its performance in a series of experiments. We demonstrate that, for standard ontologies, queries and data stored in relational databases, Ontop is fast, efficient and produces SQL rewritings of high quality.