Publikationen

Hier finden Sie von Know-Center MitarbeiterInnen verfasste wissenschaftliche Publikationen

2008

Weichselbraun A., Wohlgenannt G., Scharl A., Granitzer Michael, Neidhart T., Juffinger A.

Discovery and evaluation of non-taxonomic relations in domain ontologies

International Journal of Metadata, Semantics and Ontologies, 2008

Konferenz
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 (KB). Comparing verb vectors extracted from unknown relations with the stored centroids yields link-type suggestions. Domain experts evaluate these suggestions, refining the KB and constantly improving the components accuracy. Using four sample ontologies on ’energy sources’, this paper demonstrates how link-type suggestion aids the ontology design process. It also provides a statistical analysis on the accuracy and average ranking performance of Batch Learning (BL) vs. Online Learning (OL).
2007

Juffinger A., Neidhart T., Granitzer Michael, Kern Roman, Weichselbraun A., Wohlgenannt G., Scharl A.

Distributed Web2.0 Crawling for Ontology Evolution

Proc.of 2nd IEEE International Conference on Digital Information Management, Lyon, 2007, 2007

Konferenz
2007

Granitzer Michael, Scharl A., Weichselbraun A., Neidhart T., Wohlgenannt G.

Automated Ontology Learning and Validation using Hypothesis Testing

Proceedings of the Atlantic Web Intelligence Conference AWIC 200, Advances in Soft Computing, Springer, 2007

Konferenz
2007

Weichselbraun A., Wohlgenannt G., Scharl A., Granitzer Michael, Neidhart T., Juffinger A.

Applying Vector Space Models to Ontology Link Type Suggestion

Proceedings of 4th IEEE International Conference on Innovations in Information Technology, Dubai, 2007, 2007

Konferenz
2007

Scharl A., Weichselbraun A., Hubmann-Haidvogel A., Stern Hermann, Wohlgenannt G., Zibold D.

Media Watch on Climate Change: Building and Visualizing Contextualized Information Spaces

6th International Semantic Web Conference (ISWC-2007), Semantic Web Challenge 2007, 2007

Konferenz
Kontakt Karriere

Hiermit erkläre ich ausdrücklich meine Einwilligung zum Einsatz und zur Speicherung von Cookies. Weiter Informationen finden sich unter Datenschutzerklärung

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.

Close