An experimental evaluation of ontology-based user profiles

Hopfgartner, F. and Jose, J. M. (2014) An experimental evaluation of ontology-based user profiles. Multimedia Tools and Applications, 73(2), pp. 1029-1051. (doi: 10.1007/s11042-012-1254-2)

Abstract

In recent years, a number of research works have been carried out to improve the information retrieval process by exploiting external knowledge, e.g. by employing ontologies. Even though ontologies seem to be a promising technique to improve the retrieval process, hardly any study has been performed to evaluate the use of ontologies over a longer time period to model user interests. In this work we introduce an ontology based video recommender system that exploits implicit relevance feedback to capture users’ evolving information needs. The system exploits a generic ontology to organise users’ interests. We evaluate the recommendations by performing a user-centred multiple time-series study where participants were asked to include the system into their daily news gathering routine. The results of this study suggest that the system can be successfully employed to improve personal information seeking tasks in news domain.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Jose, Professor Joemon and Hopfgartner, Dr Frank
• Authors: Hopfgartner, F., and Jose, J. M.
• College/School: College of Arts & Humanities > School of Humanities > Information Studies; College of Science and Engineering > School of Computing Science
• Journal Name: Multimedia Tools and Applications
• Publisher: Springer US
• ISSN: 1380-7501
• ISSN (Online): 1573-7721
• Copyright Holders: Copyright © 2012 Springer Science+Business Media New York
• First Published: First published in Multimedia Tools and Applications 73(2):1029-1051
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher