The bag semantics of ontology-based data access
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...
| Hauptverfasser: | , , , , , |
|---|---|
| Format: | Journal article |
| Veröffentlicht: |
2017
|