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Datalog+⁄−: A Family of Languages for Ontology Querying

Abstract:

In ontology-based data access, an extensional database is enhanced by an ontology that generates new intensional knowledge which has to be considered when answering queries. In this setting, tractable data complexity (i.e., complexity w.r.t. the data only) of query answering is crucial, given the need to deal with large data sets. This paper summarizes results on a recently introduced family of Datalog-based languages, called Datalog+/-, which is a new framework for tractable ontology quer...

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Publisher:
Springer
Volume:
6702
Publication date:
2011-01-01
URN:
uuid:f2f5a841-5853-43fc-acaf-bd5fa7113792
Local pid:
cs:6640
ISBN:
978-3-642-24205-2

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