no code implementations • 2 Dec 2021 • Paolo Pareti, George Konstantinidis
We present an introduction and a review of the Shapes Constraint Language (SHACL), the W3C recommendation language for validating RDF data.
no code implementations • 30 Aug 2021 • Paolo Pareti, George Konstantinidis, Fabio Mogavero
Using this logic we provide a detailed map of (un)decidability and complexity results for the satisfiability and containment decision problems for different SHACL fragments.
no code implementations • 31 Aug 2020 • Paolo Pareti, George Konstantinidis, Fabio Mogavero, Timothy J. Norman
We study the interaction of SHACL features in this logic and provide the detailed map of decidability and complexity results of the aforementioned decision problems for different SHACL sublanguages.
no code implementations • 15 Nov 2019 • Paolo Pareti, George Konstantinidis, Timothy J. Norman
An important use of sensors and actuator networks is to comply with health and safety policies in hazardous environments.
1 code implementation • 1 Nov 2019 • Paolo Pareti, George Konstantinidis, Timothy J. Norman, Murat Şensoy
On the one hand, SHACL constraints can be used to define a "schema" for graph datasets.
1 code implementation • 2 Jul 2019 • Paolo Pareti, George Konstantinidis, Timothy J. Norman, Murat Şensoy
Output schemas model the graphs that would be obtained by running the rules on the graph models of the input schema.
no code implementations • 19 May 2017 • Charalampos Nikolaou, Egor V. Kostylev, George Konstantinidis, Mark Kaminski, Bernardo Cuenca Grau, Ian Horrocks
The ontology is linked to the sources using mappings, which assign views over the data to ontology predicates.