01446nas a2200313   4500008004100000020002200041245008300063210006900146260001700215300001200232520051700244653001200761653002200773653003100795653001000826653001700836653002600853100002200879700002100901700002100922700002000943700002600963700002400989700001601013700002101029700001901050700001601069856004701085       2011                        eng d  a978-1-4503-0632-400aA Better Uncle for {OWL}: Nominal Schemas for Integrating Rules and Ontologies0 aBetter Uncle for OWL Nominal Schemas for Integrating Rules and O  bACMc03/2011  a645-6543 aWe propose a description-logic style extension of OWL 2 with nominal schemas which can be used like "variable nominal classes" within axioms. This feature allows ontology languages to express arbitrary DL-safe rules (as expressible in SWRL or RIF) in their native syntax. We show that adding nominal schemas to OWL 2 does not increase the worst-case reasoning complexity, and we identify a novel tractable language SROELV3(\cap, x) that is versatile enough to capture the lightweight languages OWL EL and OWL RL.10adatalog10aDescription Logic10aSemantic Web Rule Language10aSROIQ10atractability10aWeb Ontology Language1 aKrötzsch, Markus1 aMaier, Frederick1 aKrisnadhi, Adila1 aHitzler, Pascal1 aSrinivasan, Sadagopan1 aRamamritham, Krithi1 aKumar, Arun1 aRavindra, M., P.1 aBertino, Elisa1 aKumar, Ravi  uhttp://doi.acm.org/10.1145/1963405.1963496