Schema-Agnostic Query Rewriting for OWL QL

Stefan Bischof, Markus Krötzsch, Axel Polleres, Sebastian Rudolph

Published in: Workshop on Description Logics

2015

Abstract

SPARQL 1.1 is powerful enough to “implement” a full-fledged OWL QL reasoner in a single query. This paper summarises our results on schema-agnostic query rewriting in SPARQL 1.1, which supports frequent updates of both data and schema. The rewriting system does not need any information on the content of the database under query, while the SPARQL processor that executes the query does not need any support for OWL. This is particularly interesting if a database can only be accessed through a restricted SPARQL query interface that does not support reasoning.