C. Gutierrez, C. Hurtado, and A. Vaisman. European Semantic Web Conference: The Semantic Web: Research and Applications, page 93+. Heraklion, Crete, Greece, (29--1 may 2005)
The Resource Description Framework (RDF) is a metadata model and language recommended by the W3C. This paper presents a framework to incorporate temporal reasoning into RDF, yielding temporal RDF graphs. We present a semantics for temporal RDF graphs, a syntax to incorporate temporality into standard RDF graphs, an inference system for temporal RDF graphs, complexity bounds showing that entailment in temporal RDF graphs does not yield extra asymptotic complexity with respect to standard RDF graphs and sketch a temporal query language for RDF.