Datalog+/-: a family of languages for ontology querying

    Datalog, pp. 351-368, 2010.

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    Keywords:
    new intensional knowledgetractable data complexitylarge data setdatalog-based languagetractable ontology queryingMore(5+)

    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 pa...More

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