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dc.contributor.authorParra Arnau, Javier
dc.contributor.authorRebollo Monedero, David
dc.contributor.authorForné Muñoz, Jorge
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Telemàtica
dc.date.accessioned2014-05-13T17:16:36Z
dc.date.created2011
dc.date.issued2011
dc.identifier.citationParra-Arnau, J.; Rebollo-Monedero, D.; Forne, J. A privacy-protecting architecture for collaborative filtering via forgery and suppression of ratings. A: International Workshop on Data Privacy Management. "Data privacy management and autonomous spontaneus security: 6th International Workshop: DPM 2011; and 4th International Workshop: SETOP 2011: Leuven, Belgium: September 15-16, 2011: revised selected papers". Leuven: Springer, 2011, p. 42-57.
dc.identifier.isbn978-3-642-28878-4
dc.identifier.urihttp://hdl.handle.net/2117/22975
dc.description.abstractRecommendation systems are information-filtering systems that help users deal with information overload. Unfortunately, current recommendation systems prompt serious privacy concerns. In this work, we propose an architecture that protects user privacy in such collaborative-filtering systems, in which users are profiled on the basis of their ratings. Our approach capitalizes on the combination of two perturbative techniques, namely the forgery and the suppression of ratings. In our scenario, users rate those items they have an opinion on. However, in order to avoid privacy risks, they may want to refrain from rating some of those items, and/or rate some items that do not reflect their actual preferences. On the other hand, forgery and suppression may degrade the quality of the recommendation system. Motivated by this, we describe the implementation details of the proposed architecture and present a formulation of the optimal trade-off among privacy, forgery rate and suppression rate. Finally, we provide a numerical example that illustrates our formulation.
dc.format.extent16 p.
dc.language.isoeng
dc.publisherSpringer
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Informàtica::Seguretat informàtica
dc.subjectÀrees temàtiques de la UPC::Informàtica::Seguretat informàtica::Criptografia
dc.subject.lcshComputer security
dc.subject.lcshCriptography
dc.titleA privacy-protecting architecture for collaborative filtering via forgery and suppression of ratings
dc.typeConference report
dc.subject.lemacSeguretat informàtica
dc.subject.lemacCriptografia
dc.contributor.groupUniversitat Politècnica de Catalunya. SERTEL - Serveis Telemàtics
dc.identifier.doi10.1007/978-3-642-28879-1_4
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://link.springer.com/chapter/10.1007%2F978-3-642-28879-1_4
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac12989709
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
local.citation.authorParra-Arnau, J.; Rebollo-Monedero, D.; Forne, J.
local.citation.contributorInternational Workshop on Data Privacy Management
local.citation.pubplaceLeuven
local.citation.publicationNameData privacy management and autonomous spontaneus security: 6th International Workshop: DPM 2011; and 4th International Workshop: SETOP 2011: Leuven, Belgium: September 15-16, 2011: revised selected papers
local.citation.startingPage42
local.citation.endingPage57


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