| |  | de, Bruijn | OWL Lite- read moreAbstract: This deliverable presents a restricted variant of the OWL Lite species of the OWL ontology language, called OWL Lite¡. OWL Lite¡ is a strict subset of OWL Lite and there exists a direct translation into the deductive database language Datalog. Thus, any OWL Lite¡ ontology can be translated into Datalog in order to allow for e±cient query answering. It turns out that most current ontologies fall inside this fragment. An ontology language for which a translation to Datalog exists has several advantages. Most notably, it can bene¯t from highly optimized
query answering engines and allows for easy implementation of a rule and a query language on top of the ontology. We describe the restriction on the OWL Lite abstract syntax and pro-
vide an analysis of the features of OWL Lite, which are not included in OWL Lite¡ and give a rationale for not including them in the language. We present the RDF syntax and the model-theoretic semantics for OWL Lite¡ and relate OWL Lite¡ with RDFS. Finally, we indicate possible future extensions of the language. | 2004 |
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