Fast Matrix Factorization in R – This ar


Fast Matrix Factorization in R – This article will be a wrap-up of our series related to collaborative filtering techniques and how to apply them to large datasets in R. In a previous post, we covered the nearest neighbors method. Here, the focus will be on the model-based algorithm — namely, matrix factorization. In comparison to the neighbors method, it is often better in terms of prediction accuracy and time needed to train the model. The idea behind matrix factoriza… http://ow.ly/MrOf50bACJJ

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