Phdthesis3010
Datum: 23. November 2010
KIT, Fakultät für Wirtschaftswissenschaften
Erscheinungsort / Ort: Karlsruhe
Referent(en): Rudi Studer, Christof Weinhardt
BibTeX
Kurzfassung
Ontology reuse saves costs and improves interoperability between
ontologies. Knowing which ontology to reuse is difficult without having
a quality assessment. We provide a framework that enables this quality
assessment in the form of user reviews of ontologies, which are ranked based on
inter-user trust. Open Rating Systems allow to collect user reviews, ratings,
and information on trust between users, and to exploit this information for computing a personalized ranking of ontologies. However, in the traditional Open
Rating System model, objects can only be rated as a whole, and other users
can only be trusted globally. Since these limitations hinder the use of an Open
Rating System for applications like ontology
rating, we develop an extension, our
Topic-Specific Trust Open Rating System. Our system features topic-specific
trust and multi-faceted ratings. In a simulation, we show that our
Topic-Specific Open Rating System provides a better result than the Open Rating System. In a user study, we show that having user
ratings and result ranking based on our system significantly facilitates ontology selection for the end user, compared to the state of the art ontology search engines.
Download: Media:http://digbib.ubka.uni-karlsruhe.de/volltexte/documents/1529884
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