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Clustered Monotone Transforms for Rating Factorization
This non-linear transformation of the rating scale shatters the low-rank structure of the rating matrix, therefore resulting in a poor fit and consequentially, poor recommendations.
A case study of Empirical Bayes in User-Movie Recommendation system
In this article we provide a formulation of empirical bayes described by Atchade (2011) to tune the hyperparameters of priors used in bayesian set up of collaborative filter.
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