Scalable Authoritative OWL Reasoning for the Web

Abstract

In this article the authors discuss the challenges of performing reasoning on large scale RDF datasets from the Web. Using ter-Horst’s pD* fragment of OWL as a base, the authors compose a rulebased framework for application to web data: they argue their decisions using observations of undesirable examples taken directly from the Web. The authors further temper their OWL fragment through consideration of “authoritative stheirces” which counter-acts an observed behavitheir which we term “ontology hijacking”: new ontologies published on the Web re-defining the semantics of existing entities resident in other ontologies. They then present their system for performing rule-based forward-chaining reasoning which they call SAOR: Scalable Authoritative OWL Reasoner. Based upon observed characteristics of web data and reasoning in general, they design their system to scale: the system is based upon a separation of terminological data from assertional data and comprises of a lightweight in-memory index, on-disk sorts and file-scans. The authors evaluate their methods on a dataset in the order of a hundred million statements collected from real-world Web stheirces and present scale-up experiments on a dataset in the order of a billion statements collected from the Web.

DOI: 10.4018/jswis.2009040103

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@article{Hogan2009ScalableAO, title={Scalable Authoritative OWL Reasoning for the Web}, author={Aidan Hogan and Andreas Harth and Axel Polleres}, journal={Int. J. Semantic Web Inf. Syst.}, year={2009}, volume={5}, pages={49-90} }