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On the relation between keys and link keys for data interlinking

Manuel Atencia 1 Jérôme David 1 Jérôme Euzenat 1
1 MOEX - Evolution de la connaissance
Inria Grenoble - Rhône-Alpes, LIG - Laboratoire d'Informatique de Grenoble
Abstract : Both keys and their generalisation, link keys, may be used to perform data interlinking, i.e. finding identical resources in different RDF datasets. However, the precise relationship between keys and link keys has not been fully determined yet. A common formal framework encompassing both keys and link keys is necessary to ensure the correctness of data interlinking tools based on them, and to determine their scope and possible overlapping. In this paper, we provide a semantics for keys and link keys within description logics. We determine under which conditions they are legitimate to generate links. We provide conditions under which link keys are logically equivalent to keys. In particular, we show that data interlinking with keys and ontology alignments can be reduced to data interlinking with link keys, but not the other way around.
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Submitted on : Friday, November 12, 2021 - 9:23:40 AM
Last modification on : Thursday, January 20, 2022 - 5:29:00 PM


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Manuel Atencia, Jérôme David, Jérôme Euzenat. On the relation between keys and link keys for data interlinking. Semantic Web – Interoperability, Usability, Applicability, IOS Press, 2021, 12 (4), pp.547-567. ⟨10.3233/SW-200414⟩. ⟨hal-03426150⟩



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