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Efficiency Improvement of Neutrality-Enhanced Recommendation
Workshop on Human Decision Making in Recommender Systems, in conjunction with RecSys 2013
Article @ Official Site: http://ceur-ws.org/Vol-1050/
Article @ Personal Site: http://www.kamishima.net/archive/2013-ws-recsys-print.pdf
Handnote : http://www.kamishima.net/archive/2013-ws-recsys-HN.pdf
Program codes : http://www.kamishima.net/inrs/
Workshop Homepage: http://recex.ist.tugraz.at/RecSysWorkshop/
Abstract:
This paper proposes an algorithm for making recommendations so that neutrality from a viewpoint specified by the user is enhanced. This algorithm is useful for avoiding decisions based on biased information. Such a problem is pointed out as the filter bubble, which is the influence in social decisions biased by personalization technologies. To provide a neutrality-enhanced recommendation, we must first assume that a user can specify a particular viewpoint from which the neutrality can be applied, because a recommendation that is neutral from all viewpoints is no longer a recommendation. Given such a target viewpoint, we implement an information-neutral recommendation algorithm by introducing a penalty term to enforce statistical independence between the target viewpoint and a rating. We empirically show that our algorithm enhances the independence from the specified viewpoint.
Efficiency Improvement of Neutrality-Enhanced Recommendation
Workshop on Human Decision Making in Recommender Systems, in conjunction with RecSys 2013
Article @ Official Site: http://ceur-ws.org/Vol-1050/
Article @ Personal Site: http://www.kamishima.net/archive/2013-ws-recsys-print.pdf
Handnote : http://www.kamishima.net/archive/2013-ws-recsys-HN.pdf
Program codes : http://www.kamishima.net/inrs/
Workshop Homepage: http://recex.ist.tugraz.at/RecSysWorkshop/
Abstract:
This paper proposes an algorithm for making recommendations so that neutrality from a viewpoint specified by the user is enhanced. This algorithm is useful for avoiding decisions based on biased information. Such a problem is pointed out as the filter bubble, which is the influence in social decisions biased by personalization technologies. To provide a neutrality-enhanced recommendation, we must first assume that a user can specify a particular viewpoint from which the neutrality can be applied, because a recommendation that is neutral from all viewpoints is no longer a recommendation. Given such a target viewpoint, we implement an information-neutral recommendation algorithm by introducing a penalty term to enforce statistical independence between the target viewpoint and a rating. We empirically show that our algorithm enhances the independence from the specified viewpoint.
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