… In this poster, we have presented the gOWL system for ontology-mediated query answering. …
-on-shelf SPARQL query engines for supporting large-scale ontology query answering in an …

… Our goal is to devise an optimization framework for OMQA via FO-rewriting that enjoys the …
We chose Rapid since it is fast, although we do not consider query reformulation cost (hence …

Ontology-mediated query answering (OMQA) is an emerging paradigm at the basis of many
semantic-centric applications. In this setting, a conjunctive query has to be evaluated …

… this is the goal of the new optimization we devise below. As the names of the state-of-the-art …
rapidly away from query reformulations such sub-CQs with no answer on the queried KB’s …

… Chapter 2 This chapter introduces the framework of ontology-mediated query answering in
the setting of description logics, focusing on the lightweight description logic DL-LiteR that we …

… answers to queries), but it also makes the query answering task more difficult. In this chapter,
we give a brief introduction to ontology-mediated query answering … which query answering …

… ), which are unions of conjunctive queries with both ABox and … axioms, and show that query
answering in this case has the … Finally, we present an optimized query answering algorithm …

… Graphol is suitable for quick adoption by conceptual modelers … GrOWL is a tool for visualizing
and editing ontologies, based on the underlying DL semantics of OWL ontologies. GrOWL …

… also arises in AI, where learning from given data how to separate classes is the core goal
of … Ontology-mediated query answering with data-tractable description logics. In Reasoning …

… to the ontology-mediated query answering task with a covering … answers to OMQ while
being faster than their logic-based … we achieved the main goal to query fully labelled networks. …