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Erschienen in:
2014 | OriginalPaper | Buchkapitel
LCBM: Statistics-Based Parallel Collaborative Filtering
verfasst von : Fabio Petroni, Leonardo Querzoni, Roberto Beraldi, Mario Paolucci
Erschienen in: Business Information Systems
Verlag: Springer International Publishing
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In the last ten years,
recommendation systems
evolved from novelties to powerful business tools, deeply changing the internet industry. Collaborative Filtering (CF) represents today’s a widely adopted strategy to build recommendation engines. The most advanced CF techniques (i.e. those based on matrix factorization) provide high quality results, but may incur prohibitive computational costs when applied to very large data sets. In this paper we present Linear Classifier of Beta distributions Means (LCBM), a novel collaborative filtering algorithm for binary ratings that is (i) inherently parallelizable and (ii) provides results whose quality is on-par with state-of-the-art solutions (iii) at a fraction of the computational cost.