Ontop: Answering SPARQL queries over relational databases
Semantic Web, Volume 8, Issue 3, 2017, Pages 471-487.
We present Ontop, an open-source Ontology-Based Data Access (OBDA) system that allows for querying relational data sources through a conceptual representation of the domain of interest, provided in terms of an ontology, to which the data sources are mapped. Key features of Ontop are its solid theoretical foundations, a virtual approach to...More
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