Hi all, Great work and thanks to anyone for thei effort, I would be grateful if you could help me with the SVD recommender.
Can someone help me understand how the SVDPlusPlusFactorizer implementation corresponds to that in Koren's paper? ( Factorization Meets the Neighborhood: a Multifaceted Collaborative Filtering Model, KDD 2008 - http://research.yahoo.com/files/kdd08koren.pdf) All the work is done in method SVDPlusPlusFactorizer.updateParameters, what are the p and y matrices, and why do we update only matrix y but not p? Cheers, Helena
