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2017 | OriginalPaper | Buchkapitel

Improving Cold-Start Recommendations with Social-Media Trends and Reputations

verfasst von : João Santos, Filipa Peleja, Flávio Martins, João Magalhães

Erschienen in: Advances in Intelligent Data Analysis XVI

Verlag: Springer International Publishing

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Abstract

In recommender systems, the cold-start problem is a common challenge. When a new item has no ratings, it becomes difficult to relate it to other items or users. In this paper, we address the cold-start problem and propose to leverage on social-media trends and reputations to improve the recommendation of new items. The proposed framework models the long-term reputation of actors and directors, to better characterize new movies. In addition, movies popularity are deduced from social-media trends that are related to the corresponding new movie. A principled method is then applied to infer cold-start recommendations from these social-media signals. Experiments on a realistic time-frame, covering several movie-awards events between January 2014 and March 2014, showed significant improvements over ratings-only and metadata-only based recommendations.

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Metadaten
Titel
Improving Cold-Start Recommendations with Social-Media Trends and Reputations
verfasst von
João Santos
Filipa Peleja
Flávio Martins
João Magalhães
Copyright-Jahr
2017
DOI
https://doi.org/10.1007/978-3-319-68765-0_25

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