Abstract
Collaborative filtering based recommender system (CF-RS) provides personalized recommendations to users utilizing the experiences and opinions of their nearest neighbours. Although, collaborative filtering (CF) is the most successful and widely implemented filtering, data sparsity is still a major concern. In this work, we have proposed a fuzzy trust propagation scheme to alleviate the sparsity problem. Since trust is often a gradual trend, so trust to a person can be expressed more naturally using linguistic expressions. In this work, fuzzy trust is represented by linguistic terms rather than numerical values. We discuss the basic trust concepts such as fuzzy trust modeling, propagation and aggregation operators. An empirical evaluation of the proposed scheme on well known Movie-Lens dataset shows that fuzzy trust propagation allows reducing the sparsity problem of RSs while preserving the quality of recommendations.
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References
Adomavicius, G., Tuzhilin, A.: Toward The Next Generation of Recommender Systems: A Survey of The State-of-The-Art and Possible Extensions. IEEE Trans. Knowledge and Data Engineering 17(6), 734–749 (2005)
Anand, D., Bharadwaj, K.K.: Utilizing Various Sparsity Measures for Enhancing Accuracy of Collaborative Recommender Systems Based on Local and Global Similarities. Expert Systems with Applications 38(5), 5101–5109 (2010)
Al-Shamri, M.Y.H., Bharadwaj, K.K.: Fuzzy-Genetic Approach to Recommender System Based on A Novel Hybrid User Model. Expert Systems with Applications 35(3), 1386–1399 (2008)
Bharadwaj, K.K., Al-Shamri, M.Y.H.: Fuzzy Computational Models for Trust and Reputation Systems. Electronic Commerce Research and Applications 8(1), 37–47 (2009)
Golbeck, J.: Trust and Nuanced Profile Similarity in Online Social Networks. ACM Transactions on the Web (TWEB) 3(4), 1–33 (2009)
Guha, R., Kumar, R., Raghavan, P., Tomkins, A.: Propagation of Trust and Distrust. In: Proceedings of the 13th International Conference on World Wide Web, New York, pp. 403–412 (2004)
Jøsang, A., Marsh, S., Pope, S.: Exploring Different Types of Trust Propagation. In: Stølen, K., Winsborough, W.H., Martinelli, F., Massacci, F. (eds.) iTrust 2006. LNCS, vol. 3986, pp. 179–192. Springer, Heidelberg (2006)
Lesani, M., Montazeri, N.: Fuzzy Trust Aggregation and Personalized Trust Inference in Virtual Social Networks. Computational Intelligence 25(2), 51–83 (2009)
Massa, P., Avesani, P.: Trust-aware Collaborative Filtering for Recommender Systems. In: Meersman, R. (ed.) OTM 2004. LNCS, vol. 3290, pp. 492–508. Springer, Heidelberg (2004)
Shekarpour, S., Katebi, S.D.: Modeling and Evaluation of Trust with an Extension in Semantic Web. Web Semantics: Science, Services and Agents on the World Wide Web 8, 26–36 (2010)
Victor, P., Cornelis, C., De Cock, M., Da Silva, P.P.: Gradual Trust and Distrust in Recommender systems. Fuzzy Sets and Systems 160(10), 1367–1382 (2008)
Victor, P., Cornelis, C., De Cock, M., Da Silva, P.P.: Practical Aggregation Operators for Gradual Trust and Distrust. Fuzzy Sets and Systems (article in press, corrected proof, 2011)
Zadeh, L.A.: Fuzzy Sets. Information Control 8, 338–353 (1965)
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Kant, V., Bharadwaj, K.K. (2011). Incorporating Fuzzy Trust in Collaborative Filtering Based Recommender Systems. In: Panigrahi, B.K., Suganthan, P.N., Das, S., Satapathy, S.C. (eds) Swarm, Evolutionary, and Memetic Computing. SEMCCO 2011. Lecture Notes in Computer Science, vol 7076. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27172-4_53
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DOI: https://doi.org/10.1007/978-3-642-27172-4_53
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