Lookup NU author(s): Dr Georgios Pitsilis,
Dr Lindsay Marshall
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In this paper we propose a method that can be used to avoid the problem of sparsity in recommendation systems and thus to provide improved quality recommendations. The concept is based on the idea of using trust relationships to support the prediction of user preferences. We present the method as used in a centralized environment; we discuss its efficiency and compare its performance with other existing approaches. Finally we give a brief outline of the potential application of this approach to a decentralized environment.
Author(s): Pitsilis G, Marshall LF
Publication type: Report
Publication status: Published
Series Title: School of Computing Science Technical Report Series
Print publication date: 01/11/2004
Source Publication Date: November 2004
Report Number: 875
Institution: School of Computing Science, University of Newcastle upon Tyne
Place Published: Newcastle upon Tyne