An incentive-based architecture for social recommendations

Rajat Bhattacharjee, Ashish Goel, Konstantinos Kollias

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

We present an incentive-based architecture for providing recommendations in a social network. We maintain a distinct reputation system for each individual and we rely on users to identify appropriate correlations and rate the items using a system-provided recommendation language. The key idea is to design an incentive structure and a ranking system such that any inaccuracy in the recommendations implies the existence of a profitable arbitrage opportunity, hence making the system resistant to malicious spam and presentation bias. We also show that, under mild assumptions, our architecture provides users with incentive to minimize the Kullback-Leibler divergence between the ratings and the actual item qualities, quickly driving the system to an equilibrium state with accurate recommendations. Copyright 2009 ACM.
Original languageEnglish (US)
Title of host publicationProceedings of the third ACM conference on Recommender systems - RecSys '09
PublisherAssociation for Computing Machinery (ACM)
Pages229-232
Number of pages4
ISBN (Print)9781605584355
DOIs
StatePublished - 2009
Externally publishedYes

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