Analysing and promoting ontology interoperability in Wikibase. Dobriy, D. & Polleres, A. In Proceedings of the 3rd Wikidata Workshop (co-located with ISWC2022), October, 2022.
Analysing and promoting ontology interoperability in Wikibase [pdf]Paper  abstract   bibtex   
Wikibase, the open-source software behind Wikidata, increasingly gains popularity among third-party Linked Data publishers. However, the platform's unique data model decreases the degree of interoperability with existing Semantic Web standards and tools that underlie Linked Data as codified by Linked Data principles. In particular, this unique data model of Wikibase also undermines the direct reuse of ontologies and vocabularies, in a manner compliant with Semantic Web standards and Linked Data principles. To this end, firstly, we compare the Wikibase data model to the established RDF data model. Secondly, we enumerate a series of challenges for importing existing ontologies into Wikibase. Thirdly, we present practical solutions to these challenges and introduce a tool for importing and re-using ontologies within Wikibase. Thus, the paper aims to promote ontology interoperability in Wikibase and by doing so hopes to contribute to higher degree of inter-linkage of Wikibase instances with Linked Open Data.

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