177 citations · 621 across the 42 of their papers we have counts for
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cs.AI2021★ 1 cited
How to Approximate Ontology-Mediated Queries
Anneke Haga, Carsten Lutz, Leif Sabellek +1
We introduce and study several notions of approximation for ontology-mediated queries based on the description logics ALC and ALCI. Our approximations are of two kinds: we may (1)…
cs.AI2021
Actively Learning Concepts and Conjunctive Queries under ELr-Ontologies
Maurice Funk, Jean Christoph Jung, Carsten Lutz
We consider the problem to learn a concept or a query in the presence of an ontology formulated in the description logic ELr, in Angluin's framework of active learning that allows…