Handling Inconsistencies due to Class Disjointness in SPARQL Updates

Aljbin Ahmeti, Diego Calvanese, Axel Polleres, Vadim Savenkov

Publication: Chapter in book/Conference proceedingContribution to conference proceedings


The problem of updating ontologies has received increased attention in recent years. In the approaches proposed so far, either the update language is restricted to (sets of) atomic updates, or, where the full SPARQL update language is allowed, the TBox language is restricted so that no inconsistencies can arise. In this paper we discuss directions to overcome these limitations. Starting from a DL-Lite fragment covering RDFS and concept disjointness axioms, we define three semantics for SPARQL update: under cautious semantics, inconsistencies are resolved by rejecting updates potentially introducing conflicts; under brave semantics, instead, conflicts are overridden in favor of new information where possible; finally, the fainthearted semantics is a compromise between the former two approaches, designed to accommodate as much of the new information as possible, as long as consistency with the prior knowledge is not violated. We show how these semantics can be implemented in SPARQL via rewritings of polynomial size and draw first conclusions from their practical evaluation.
Original languageEnglish
Title of host publicationLNCS: Proceedings of the 13th European Semantic Web Conference (ESWC2016)
Editors Harald Sack, Eva Blomqvist, Mathieu d'Aquin, Chiara Ghidini, Simone Paolo Ponzetto, Christoph Lange¿
Place of PublicationHeraklion, Greece
Pages387 - 404
Publication statusPublished - 2016

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