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Collaborative Filtering via Group-Structured Dictionary Learning
Zoltan Szabo, Barnabas Poczos, Andras Lorincz · 2012-01-01 · via math.ST updates on arXiv.org

Structured sparse coding and the related structured dictionary learning problems are novel research areas in machine learning. In this paper we present a new application of structured dictionary learning for collaborative filtering based recommender systems. Our extensive numerical experiments demonstrate that the presented technique outperforms its state-of-the-art competitors and has several advantages over approaches that do not put structured constraints on the dictionary elements.

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