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Enhancement of the Neutrality in Recommendation

by Researcher at AIST on Sep 07, 2012

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Enhancement of the Neutrality in Recommendation ...

Enhancement of the Neutrality in Recommendation
Workshop on Human Decision Making in Recommender Systems, in conjunction with RecSys 2012

Article @ Official Site: http://ceur-ws.org/Vol-893/
Article @ Personal Site: http://www.kamishima.net/archive/2012-ws-recsys-print.pdf
Handnote : http://www.kamishima.net/archive/2012-ws-recsys-HN.pdf
Program codes : http://www.kamishima.net/inrs
Workshop Homepage: http://recex.ist.tugraz.at/RecSysWorkshop2012

Abstract:
This paper proposes an algorithm for making recommendation so that the neutrality toward the viewpoint specified by a user is enhanced. This algorithm is useful for avoiding to make decisions based on biased information. Such a problem is pointed out as the filter bubble, which is the influence in social decisions biased by a personalization technology. To provide such a recommendation, we assume that a user specifies a viewpoint toward which the user want to enforce the neutrality, because recommendation that is neutral from any information is no longer recommendation. Given such a target viewpoint, we implemented information neutral recommendation algorithm by introducing a penalty term to enforce the statistical independence between the target viewpoint and a preference score. We empirically show that our algorithm enhances the independence toward the specified viewpoint by and then demonstrate how sets of recommended items are changed.

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Enhancement of the Neutrality in Recommendation Enhancement of the Neutrality in Recommendation Presentation Transcript