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Trust as a key to improving Recommendation Systems

Lookup NU author(s): Dr Georgios Pitsilis, Emeritus Professor Lindsay MarshallORCiD



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.

Publication metadata

Author(s): Pitsilis G, Marshall L

Publication type: Report

Publication status: Published

Series Title: School of Computing Science Technical Report Series

Year: 2004

Pages: 15

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