SAOR: Authoritative Reasoning for the Web. Hogan, A., Harth, A., & Polleres, A. In Domingue, J. & Anutariya, C., editors, Proceedings of the 3rd Asian Semantic Web Conference (ASWC 2008), volume 5367, of Lecture Notes in Computer Science (LNCS), pages 76–90, Bankok, Thailand, December, 2008.
SAOR: Authoritative Reasoning for the Web [pdf]Paper  abstract   bibtex   
In this paper we discuss the challenges of performing reasoning on large scale RDF datasets from the Web. We discuss issues and practical solutions relating to reasoning over web data using a rule-based approach to forward-chaining; in particular, we identify the problem of ontology hijacking: new ontologies published on the Web re-defining the semantics of existing concepts resident in other ontologies. Our solution introduces consideration of authoritative sources. Our system is designed to scale, comprising file-scans and selected lightweight on-disk indices. We evaluate our methods on a dataset in the order of a hundred million statements collected from real-world Web sources.

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