Title: Construction and maintenance of a fuzzy temporal ontology from news stories

Authors: Brett Drury; J.J. Almeida; M.H.M. Morais

Addresses: LIAAD-INESC, Rua de Ceuta, 118, 6°, 4050-190 Porto, Portugal ' LIAAD-INESC, Rua de Ceuta, 118, 6°, 4050-190 Porto, Portugal ' LIAAD-INESC, Rua de Ceuta, 118, 6°, 4050-190 Porto, Portugal

Abstract: Construction of business ontologies from news sources can produce a detailed representation of the chosen area, but the ontology may over time gather errors because information can become rapidly outdated. The two stage strategy described in this paper attempts to identify outdated relations in an ontology by affixing a confidence score to each relation and decaying the relation until a preset value where it is deleted or archived. The relation score is refreshed if the information is repeated in a news story. An evaluation demonstrates that over time erroneous information is removed and new information is added to the ontology.

Keywords: business news; temporal ontologies; ontology management; business ontologies; news sources; outdated relations; erroneous information; out-of-date information; fuzzy ontology.

DOI: 10.1504/IJMSO.2011.048028

International Journal of Metadata, Semantics and Ontologies, 2011 Vol.6 No.3/4, pp.219 - 233

Received: 25 Aug 2011
Accepted: 16 Nov 2011
Published online: 12 Feb 2015 *

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