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Toward a Social Graph Recommendation Algorithm: Do We Trust Our Friends in Movie Recommendations?

  • Conference paper
On the Move to Meaningful Internet Systems: OTM 2012 Workshops (OTM 2012)

Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 7567))

Abstract

Social networks provide users with information about their friends, their activities, and their preferences. In this paper we study the effectiveness of movie recommendations computed from such communicated preferences. We present a set of social movie recommendation algorithms, which we implemented on top of the Facebook social network, and we compare their effectiveness in influencing user decisions. We also study the effect of showing users a justification for the recommendations, in the form of the profile pictures of the friends that caused the recommendation.

We show that social movie recommendations are generally accurate. Furthermore, 80% of the users that are undecided on whether to accept a recommendation are able to reach a decision upon learning of the identities of the users behind the recommendation. However, in 27% of the cases, they decide against watching the recommended movies, showing that revealing identities can have a negative effect on recommendation acceptance.

This Work was supported in Part by a Gift from Google, Inc.

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Authors and Affiliations

  1. Computer Science Department, University of California Santa Cruz, Santa Cruz, CA, USA, 95065

    Ali Adabi & Luca de Alfaro

Authors
  1. Ali Adabi
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  2. Luca de Alfaro
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Editor information

Editors and Affiliations

  1. Facultad de Informática, Universidad Politécnica de Madrid, Campus de Montegancedo S/N, Boadilla del Monte, 28660, Madrid, Spain

    Pilar Herrero

  2. Research Centre for Automatic Control, School of Engineering in Information Technology, University of Lorraine, CNRS, Campus scientifique, BP 70239, 54506, Vandoeuvre-les-Nancy, France

    Hervé Panetto

  3. Department of Computer Science, Semantic Technology and Application Research Laboratory (STARLab), Vrije Universiteit Brussel, Building G-10, Pleinlaan 2, 1050, Brussels, Belgium

    Robert Meersman

  4. La Trobe University, Melbourne, VIC, Australia

    Tharam Dillon

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Adabi, A., de Alfaro, L. (2012). Toward a Social Graph Recommendation Algorithm: Do We Trust Our Friends in Movie Recommendations?. In: Herrero, P., Panetto, H., Meersman, R., Dillon, T. (eds) On the Move to Meaningful Internet Systems: OTM 2012 Workshops. OTM 2012. Lecture Notes in Computer Science, vol 7567. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-33618-8_83

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  • DOI: https://doi.org/10.1007/978-3-642-33618-8_83

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-33617-1

  • Online ISBN: 978-3-642-33618-8

  • eBook Packages: Computer ScienceComputer Science (R0)

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