The RML Ontology: A Community-Driven Modular Redesign After a Decade of Experience in Mapping Heterogeneous Data to RDF

[en] AbstractThe Relational to RDF Mapping Language (R2RML) became a W3C Recommendation a decade ago. Despite its wide adoption, its potential applicability beyond relational databases was swiftly explored. As a result, several extensions and new mapping languages were proposed to tackle the limitations that surfaced as R2RML was applied in real-world use cases. Over the years, one of these languages, the RDF Mapping Language (RML), has gathered a large community of contributors, users, and compliant tools. So far, there has been no well-defined set of features for the mapping language, nor was there a consensus-marking ontology. Consequently, it has become challenging for non-experts to fully comprehend and utilize the full range of the language’s capabilities. After three years of work, the W3C Community Group on Knowledge Graph Construction proposes a new specification for RML. This paper presents the new modular RML ontology and the accompanying SHACL shapes that complement the specification. We discuss the motivations and challenges that emerged when extending R2RML, the methodology we followed to design the new ontology while ensuring its backward compatibility with R2RML, and the novel features which increase its expressiveness. The new ontology consolidates the potential of RML, empowers practitioners to define mapping rules for constructing RDF graphs that were previously unattainable, and allows developers to implement systems in adherence with [R2]RML.Resource type: Ontology/License: CC BY 4.0 InternationalDOI: 10.5281/zenodo.7918478/URL: http://w3id.org/rml/portal/

Disciplines :

Computer science

Author, co-author :

Iglesias-Molina, Ana ; Universidad Politécnica de Madrid

Van Assche, Dylan ; UGent - Ghent University [BE]

Arenas-Guerrero, Julián ; Universidad Politécnica de Madrid

De Meester, Ben ; UGent - Ghent University [BE]

Debruyne, Christophe ; Université de Liège - ULiège > Montefiore Institute of Electrical Engineering and Computer Science

Jozashoori, Samaneh ; Leibniz Information Center for Science and Technology

Maria, Pano; Skemu

Michel, Franck ; University Cote d’Azur

Chaves-Fraga, David ; KU Leuven - Catholic University of Leuven [BE]

Dimou, Anastasia ; KU Leuven - Catholic University of Leuven [BE]

Language :

English

Title :

The RML Ontology: A Community-Driven Modular Redesign After a Decade of Experience in Mapping Heterogeneous Data to RDF

Publication date :

27 October 2023

Event name :

The Semantic Web - ISWC 2023 - 22nd International Semantic Web Conference

Event organizer :

Semantic Web Science Association

Event place :

Athens, Greece

Event date :

November 6-10, 2023

Audience :

International

Main work title :

The Semantic Web – ISWC 2023

Publisher :

Springer Nature Switzerland

ISBN/EAN :

978-3-03-147243-5
978-3-03-147242-8

Peer reviewed :

Peer reviewed

Additional URL :

https://link.springer.com/content/pdf/10.1007/978-3-031-47243-5_9

Available on ORBi :

since 12 November 2023

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