Recording provenance information of RDF triples aggregated from different heterogeneous sources is crucial in order to effectively support trust mechanisms, digital rights and privacy policies. Managing provenance becomes even more important when we consider not only explicitly stated but also implicit triples (discovered through RDF Schema inference rules) in conjunction with declarative languages for querying and updating RDF graphs. This paper proposes a method which relies on colored RDF triples represented as quadruples to capture and manipulate explicit provenance information.
Keywords: RDF Schema, Provenance, Named graph
Author: Christophides, Vassilis
Date created: 2009-01-01 05:00:00.000
Time required: P20M
- Correctly uses sub-class relationships in support of inference.
- Correctly uses sub-property relationships in support of inference.
- Grasps essential differences between schemas for syntactic validation (e.g., XML) and for inferencing (RDF Schema).
- Understands a named graph as one of the collection of graphs comprising an RDF dataset, with a graph name unique in the context of that dataset.