SPARQL 1.1 was recently released, which includes entailment regimes for
RDFS and OWL vocabularies and a mechanism to express navigation patterns through regular expressions. Unfortunately, there are still some useful navigation patterns that cannot be expressed in SPARQL 1.1, and the language lacks of a general mechanism to express recursive queries. To the best of the authors' knowledge, there is no RDF query language that combines the above functionalities, and which can also be evaluated efficiently. It is the aim of this work to fill this gap.
URL: http://ciws.cl/media/pdf/pods14.pdf
Keywords: RDF Schema, SPARQL, Web Ontology Language (OWL), Entailment regimes, Datalog
Author: Pieris, Andreas
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P30M
Educational use: instruction
Educational audience: teacher-educationSpecialist
Interactivity type: expositive
- Formulates advanced queries on data containing blank nodes.
- Knows that the word "ontology" is ambiguous, referring to any RDF vocabulary, but more typically a set of OWL classes and properties designed to support inferencing in a specific domain.
- Knows Web Ontology Language, or OWL (2004), as a RDF vocabulary of properties and classes that extend support for expressive data modeling and automated inferencing (reasoning).
- Understands the principles and practice of inferencing.
- Uses common entailment regimes and understands their uses.