1 code implementation • Semantic Web 2024 • Julián Arenas-Guerrero, Ana Iglesias-Molina, David Chaves-Fraga, Daniel Garijo, Oscar Corcho, Anastasia Dimou
RDF-star has been proposed as an extension of RDF to make statements about statements.
no code implementations • SemTab@ISWC 2023 2023 • Ioannis Dasoulas, Duo Yang, Xuemin Duan, Anastasia Dimou
The Semantic Web Challenge on Tabular Data to Knowledge Graph Matching (SemTab) was introduced in an effort to benchmark semantic table interpretation systems, by evaluating them over diverse datasets and tasks.
Ranked #1 on Columns Property Annotation on WDC SOTAB V2
no code implementations • 22 Dec 2021 • Thomas Delva, Anastasia Dimou, Maxime Jakubowski, Jan Van den Bussche
In this paper, (i) we define our extraction mechanism formally, building on recently proposed SHACL formalizations; (ii) we establish correctness properties, which relate shape fragments to notions of provenance for database queries; (iii) we compare shape fragments with SPARQL queries; (iv) we discuss implementation options; and (v) we present initial experiments demonstrating that shape fragments are a feasible new idea.
no code implementations • 13 May 2020 • Anastasia Dimou
In this paper, an overview of the state of the art on knowledge graph generation is provided, with focus on the two prevalent mapping languages: the W3C recommended R2RML and its generalisation RML.