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.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Berners-Lee, T., Hendler, J., Lassila, O.: The semantic web. Scientific American (May 2001)
Golbeck, J.: Computing and applying trust in web-based social networks (2005)
Golbeck, J., Hendler, J.: Accuracy of metrics for inferring trust and reputation in semantic web-based social network. LNCS, pp. 116–131. Springer, Heidelberg (2004)
Hirsch, J.E.: An index to quantify an individual’s scientific research output. PNAS 102(46), 16569–16572 (2005)
(FOAF) Last modified Feb-2009, http://www.foaf-project.org/
Dokoohaki, N., Matskin, M.: Structural determination of ontology-driven trust networks in semantic social institutions and ecosystems. In: International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies (UBICOMM ’07) and the International Conference on Advances in Semantic Processing (SEMAPRO 2007), pp. 263–268. IEEE Computer Society, Los Alamitos (2007)
Golbeck, J.A.: Computing and applying trust in web-based social networks. PhD thesis, University of Maryland at College Park, College Park, MD, USA, Chair-Hendler, James (2005)
Dokoohaki, N., Matskin, M.: Effective design of trust ontologies for improvement in the structure of socio-semantic trust networks. International Journal on Advances in Intelligent Systems 1st(1942-2679), 23–42 (2008)
Massa, P., Avesani, P.: Trust-aware collaborative filtering for recommender systems. In: Meersman, R., Tari, Z. (eds.) OTM 2004. LNCS, vol. 3290, pp. 492–508. Springer, Heidelberg (2004)
O’Donovan, J., Smyth, B.: Trust in recommender systems. In: IUI ’05: Proceedings of the 10th International Conference on Intelligent User Interfaces, pp. 167–174. ACM, New York (2005)
Lathia, N., Hailes, S., Capra, L.: Trust-based collaborative filtering. In: IFIPTM 2008: Joint iTrust and PST Conferences on Privacy, Trust Management and Security, Department of Computer Science, p. 14. University College London, London (2008)
Weng, J., Miao, C., Goh, A.: Improving collaborative filtering with trust-based metrics. In: SAC ’06: Proceedings of the 2006 ACM Symposium on Applied Computing, pp. 1860–1864. ACM, New York (2006)
DHT: Last modified March-2009, http://en.wikipedia.org/wiki/Distributed_hash_table
Bell, R., Koren, Y.: Scalable collaborative filtering with jointly derived neighborhood interpolation weights. In: International Conference on Data Mining (ICDM’07), pp. 175–186. IEEE, Los Alamitos (2007)
Zarghami, A., Fazeli, S., Dokoohaki, N., Matskin, M.: Social trust-aware recommendation system: A t-index approach. In: Proceedings of the IEEE/WIC/ACM International Joint Conferences on Web Intelligence and Intelligent Agent Technologies, WI-IAT 2009 (2009)
Protégé: Copyright, Stanford Center for Biomedical Informatics Research (2009), http://protege.stanford.edu/
Welkin: Copyright 2004-2008 Massachusetts Institute of Technology, http://simile.mit.edu/welkin/
Jelasity, M., Montresor, A., Babaoglu, O.: Gossip-based aggregation in large dynamic networks. ACM Trans. Comput. Syst. 23(3), 219–252 (2005)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Fazeli, S., Zarghami, A., Dokoohaki, N., Matskin, M. (2010). Mechanizing Social Trust-Aware Recommenders with T-Index Augmented Trustworthiness. In: Katsikas, S., Lopez, J., Soriano, M. (eds) Trust, Privacy and Security in Digital Business. TrustBus 2010. Lecture Notes in Computer Science, vol 6264. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-15152-1_18
Download citation
DOI: https://doi.org/10.1007/978-3-642-15152-1_18
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-15151-4
Online ISBN: 978-3-642-15152-1
eBook Packages: Computer ScienceComputer Science (R0)