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Discovery and evaluation of non-taxonomic relations in domain ontologies

Weichselbraun, Albert and Wohlgenannt, Gerhard and Scharl, Arno and Granitzer, Michael and Neidhart, Thomas and Juffinger, Andreas (2009) Discovery and evaluation of non-taxonomic relations in domain ontologies. International Journal of Metadata, Semantics and Ontologies, 4 (3). pp. 212-222. ISSN 1744-2621

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Official URL: http://www.inderscience.com/search/index.php?actio...

Abstract

The identification and labelling of non-hierarchical relations are among the most challenging tasks in ontology learning. This paper describes a bottom-up approach for automatically suggesting ontology link types. The presented method extracts verb-vectors from semantic relations identified in the domain corpus, aggregates them by computing centroids for known relation types, and stores the centroids in a central knowledge base. Comparing verb-vectors extracted from unknown relations with the stored centroids yields link type suggestions. Domain experts evaluate these suggestions, refining the knowledge base and constantly improving the component's accuracy. A final evaluation provides a detailed statistical analysis of the introduced approach.

Item Type:Article
Uncontrolled Keywords:ontology learning, ontology extension, link-type detection, non-hierarchical relations, non-taxonomic relations, vector space modelling, domain ontologies
Subjects:Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions:Faculty of Engineering, Science and Mathematics > School of Electronics and Computer Science
ID Code:11
Deposited By: Dr Albert Weichselbraun
Deposited On:14 Aug 2009 12:49
Last Modified:22 Jul 2010 14:25

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