SPARQL Update for Materialized Triple Stores under DL-Lite$_RDFS$ Entailment

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Proceedings of the 27th International Workshop on Description Logics (DL), volume 1193 of CEUR Electronic Workshop Proceedings, \upshape\protect, page 8-20. (2014)


Updates in RDF stores have recently been standardised in the SPARQL~1.1 Update specification. However, computing answers entailed by ontologies in triple stores is usually treated orthogonally to updates. Even W3C's SPARQL~1.1 Update language and SPARQL~1.1 Entailment Regimes specifications explicitly exclude a standard behaviour for entailment regimes other than simple entailment in the context of updates. In this paper, we take a first step to close this gap. We define a fragment of SPARQL basic graph patterns corresponding to (the RDFS fragment of) DL-Lite and the corresponding SPARQL update language, dealing with updates both of ABox and of TBox statements. We discuss possible semantics along with potential strategies for implementing them. Particularly, we treat materialised RDF stores, which store all entailed triples explicitly, and preservation of materialisation upon ABox and TBox updates.



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