Towards more expressive ontology languages: The query answering problem

    Artif. Intell., pp. 87-128, 2012.

    Cited by: 141|Bibtex|Views4|Links
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    Keywords:
    effective ontology languagetractable data complexityexpressive ontology languagebasic datalogcomplexity resultMore(12+)

    Abstract:

    Ontology reasoning finds a relevant application in the so-called ontology-based data access, where a classical extensional database (EDB) is enhanced by an ontology, in the form of logical assertions, that generates new intensional knowledge which contributes to answering queries. In this setting, queries are therefore answered against a ...More

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