TY - CONF T1 - Pushing the Boundaries of Tractable Ontology Reasoning T2 - The Semantic Web - ISWC 2014 - 13th International Semantic Web Conference, Riva del Garda, Italy, October 19-23, 2014. Proceedings, Part II Y1 - 2014 A1 - David Carral A1 - Cristina Feier A1 - Cuenca Grau, Bernardo A1 - Pascal Hitzler A1 - Ian Horrocks KW - description logics KW - OWL KW - Tractable Reasoning AB -

We identify a class of Horn ontologies for which standard reasoning tasks such as instance checking and classification are tractable. The class is general enough to include the OWL 2 EL, QL, and RL profiles. Verifying whether a Horn ontology belongs to the class can be done in polynomial time. We show empirically that the class includes many real-world ontologies that are not included in any OWL 2 profile, and thus that polynomial time reasoning is possible for these ontologies.

JF - The Semantic Web - ISWC 2014 - 13th International Semantic Web Conference, Riva del Garda, Italy, October 19-23, 2014. Proceedings, Part II UR - http://dx.doi.org/10.1007/978-3-319-11915-1_10 ER -