Linked Datatypes - lightweight description for key information

The Linked Datatypes initative aims at enabling lightweight descriptions of useful knowledge on the Web of Data, using simple RDF literals empowered by RDF Datatypes.

The flagship Datatype is cdt:ucum that can be used to describe measurements with any unit defined in The Unified Code for Units of Measure.

Test them online

Publications

Maxime Lefrançois, Antoine Zimmermann The Unified Code for Units of Measure in RDF: cdt:ucum and other UCUM Datatypes, In Proc. Extended Semantic Web Conference, ESWC, Heraklion, Crete, Greece, Jun 2018 (demo paper - PDF - BibTeX - Poster)

Maxime Lefrançois, Antoine Zimmermann Supporting Arbitrary Custom Datatypes in RDF and SPARQL, In Proc. Extended Semantic Web Conference, ESWC, Heraklion, Crete, Greece, May 2016 (long paper - PDF - BibTeX)

Maxime Lefrançois, Antoine Zimmermann Support uniforme de types de données personnalisés dans RDF et SPARQL, Actes de la 17ème conférence Extraction et Gestion des Connaissances, EGC, Grenoble, France, Jan 2017 (short paper - PDF - BibTeX)

Implementation

Linked Datatypes are implemented:

Custom Datatypes for Measurements are implemented in a fork of Apache Jena (issue tracker)
The on-the-fly support of Arbitrary Custom Datatypes is implemented in a fork of Apache Jena (issue tracker)

Acknowledgments

This work has been partly funded by the ITEA2 12004 SEAS (Smart Energy Aware Systems) project, the ANR 14-CE24-0029 OpenSensingCity project, and a bilateral research contract with ENGIE R&D.