Mechanizing Social Trust-Aware Recommenders with T-Index Augmented Trustworthiness

Fazeli, Soude and Zarghami, Alireza and Dokoohaki, Nima and Matskin, Mihhail (2010) Mechanizing Social Trust-Aware Recommenders with T-Index Augmented Trustworthiness. In: 7th International Conference on Trust, Privacy and Security in Digital Business, TrustBus, Agust 30-31 2010, Bilbao, Spain.

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Abstract:	Social Networks have dominated growth and popularity of the Web to an extent which has never been witnessed before. Such popularity puts forward issue of trust to the participants of Social Networks. Collaborative Filtering Recommenders have been among many systems which have begun taking full advantage of Social Trust phenomena for generating more accurate predictions. For analyzing the evolution of constructed networks of trust, we utilize Collaborative Filtering enhanced with T-index as an estimate of a user’s trustworthiness to identify and select neighbors in an effective manner. Our empirical evaluation demonstrates how T-index improves the Trust Network structure by generating connections to more trustworthy users. We also show that exploiting T-index results in better prediction accuracy and coverage of recommendations collected along few edges that connect users on a network.
Item Type:	Conference or Workshop Item
Copyright:	© 2010 Springer
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Information Systems (IS)
Link to this item:	http://purl.utwente.nl/publications/73927
Official URL:	http://dx.doi.org/10.1007/978-3-642-15152-1_18
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