The bag semantics of ontology-based data access

The bag semantics of ontology-based data access

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Ontology-based data access (OBDA) is a popular approach for integrating and querying multiple data sources by means of a shared ontology. The ontology is linked to the sources using mappings, which assign views over the data to ontology predicates. Motivated by the need for OBDA systems supporting d...

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Autors principals:	Nikolaou, C, Kostylev, E, Konstantinidis, G, Kaminski, M, Grau, B, Horrocks, I
Format:	Journal article
Publicat:	2017

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