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Relational to RDF Data Exchange in Presence of a Shape Expression Schema

Iovka Boneva 1, 2 Jose Lozano 1, 2 Sławek Staworko 1, 2
2 LINKS - Linking Dynamic Data
Inria Lille - Nord Europe, CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189
Abstract : We study the relational to RDF data exchange problem, where the target constraints are specified using Shape Expression schema (ShEx). We investigate two fundamental problems: 1) consistency which is checking for a given data exchange setting whether there always exists a solution for any source instance, and 2) constructing a universal solution which is a solution that represents the space of all solutions. We propose to use typed IRI constructors in source-to-target tuple generating dependencies to create the IRIs of the RDF graph from the values in the relational instance, and we translate ShEx into a set of target dependencies. We also identify data exchange settings that are key covered, a property that is decidable and guarantees consistency. Furthermore, we show that this property is a sufficient and necessary condition for the existence of universal solutions for a practical subclass of weakly-recursive ShEx.
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Submitted on : Tuesday, April 24, 2018 - 2:02:20 PM
Last modification on : Monday, April 20, 2020 - 4:14:02 PM
Document(s) archivé(s) le : Wednesday, September 19, 2018 - 11:37:00 AM


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  • HAL Id : hal-01775199, version 1



Iovka Boneva, Jose Lozano, Sławek Staworko. Relational to RDF Data Exchange in Presence of a Shape Expression Schema. AMW 2018 - 12th Alberto Mendelzon International Workshop on Foundations of Data Management, May 2018, Cali, Colombia. pp.1-16. ⟨hal-01775199⟩



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