Kontchakov, Roman and Rodríguez-Muro, M. and Zakharyaschev, Michael (2013) Ontology-based data access with databases: a short course. In: Rudolph, S. and Gottlob, G. and Horrocks, I. and van Harmelen, F. (eds.) Reasoning Web. Semantic Technologies for Intelligent Data Access. Lecture Notes in Computer Science 8067. Berlin, Germany: Springer, pp. 194-229. ISBN 9783642397837.
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Abstract
Ontology-based data access (OBDA) is regarded as a key ingredient of the new generation of information systems. In the OBDA paradigm, an ontology defines a high-level global schema of (already existing) data sources and provides a vocabulary for user queries. An OBDA system rewrites such queries and ontologies into the vocabulary of the data sources and then delegates the actual query evaluation to a suitable query answering system such as a relational database management system or a datalog engine. In this chapter, we mainly focus on OBDA with the ontology language OWL 2QL, one of the three profiles of the W3C standard Web Ontology Language OWL 2, and relational databases, although other possible languages will also be discussed. We consider different types of conjunctive query rewriting and their succinctness, different architectures of OBDA systems, and give an overview of the OBDA system Ontop.
Metadata
| Item Type: | Book Section |
|---|---|
| Additional Information: | 9th International Summer School 2013, Mannheim, Germany, July 30 – August 2, 2013. Proceedings "The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-642-39784-4_5" |
| School: | Birkbeck Faculties and Schools > Faculty of Science > School of Computing and Mathematical Sciences |
| Depositing User: | Roman Kontchakov |
| Date Deposited: | 11 Aug 2014 11:30 |
| Last Modified: | 09 Aug 2023 12:35 |
| URI: | https://eprints.bbk.ac.uk/id/eprint/10329 |
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