10 citations · 11 across the 2 of their papers we have counts for
2 papers
cs.DB2020★ 10 cited
Query Expressibility and Verification in Ontology-Based Data Access
Carsten Lutz, Johannes Marti, Leif Sabellek
In ontology-based data access, multiple data sources are integrated using an ontology and mappings. In practice, this is often achieved by a bootstrapping process, that is, the ont…
cs.CC2019★ 1 cited
A Complete Classification of the Complexity and Rewritability of Ontology-Mediated Queries based on the Description Logic EL
Carsten Lutz, Leif Sabellek
We provide an ultimately fine-grained analysis of the data complexity and rewritability of ontology-mediated queries (OMQs) based on an EL ontology and a conjunctive query (CQ). Ou…