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Recommender Systems Handbook pp 649–688Cite as

Privacy Aspects of Recommender Systems

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Abstract

The popularity of online recommender systems has soared; they are deployed in numerous websites and gather tremendous amounts of user data that are necessary for recommendation purposes. This data, however, may pose a severe threat to user privacy, if accessed by untrusted parties or used inappropriately. Hence, it is of paramount importance for recommender system designers and service providers to find a sweet spot, which allows them to generate accurate recommendations and guarantee the privacy of their users. In this chapter we overview the state of the art in privacy enhanced recommendations. We analyze the risks to user privacy imposed by recommender systems, survey the existing solutions, and discuss the privacy implications for the users of recommenders. We conclude that a considerable effort is still required to develop practical recommendation solutions that provide adequate privacy guarantees, while at the same time facilitating the delivery of high-quality recommendations to their users.

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Notes

  1. 1.

    http://pages.ebay.com/help/policies/privacy-policy.html.

  2. 2.

    http://www.amazon.com/gp/help/customer/display.html?nodeId=468496.

  3. 3.

    http://www.google.com/intl/en/policies/privacy/.

  4. 4.

    http://www.mobcom.org.

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Authors and Affiliations

  1. NICTA, Sydney, NSW, Australia

    Arik Friedman

  2. Clemson University, Clemson, SC, USA

    Bart P. Knijnenburg

  3. iMinds - Ghent University, Ghent, Belgium

    Kris Vanhecke & Luc Martens

  4. CSIRO, Sydney, NSW, Australia

    Shlomo Berkovsky

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  1. Arik Friedman
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  2. Bart P. Knijnenburg
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  3. Kris Vanhecke
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  4. Luc Martens
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  5. Shlomo Berkovsky
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Correspondence to Arik Friedman .

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  1. Faculty of Computer Science, Free University of Bozen-Bolzano, Bolzano - Bozen, Italy

    Francesco Ricci

  2. Information Systems Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel

    Lior Rokach

  3. Ben-Gurion University of the Negev, Beer-Sheva, Israel

    Bracha Shapira

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Friedman, A., Knijnenburg, B.P., Vanhecke, K., Martens, L., Berkovsky, S. (2015). Privacy Aspects of Recommender Systems. In: Ricci, F., Rokach, L., Shapira, B. (eds) Recommender Systems Handbook. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-7637-6_19

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