OBDA with Ontop.
Mariano Rodríguez-Muro, Roman Kontchakov, Michael Zakharyaschev · 2013
We evaluate the performance of the OBDA system Ontop and compare it with other systems. Our experiments show that (i) the Ontop tree-witness query rewriter is fast and outperforms the competitors, and (ii) query evaluation in Ontop using the semantic index is as efficient as in materialisation-based systems (but without the materialisation overhead).