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From Helena Botorova <>
Subject Fwd: SVDPlusPlusFactorizer implementation
Date Sat, 30 Nov 2013 13:04:48 GMT
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 -
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?


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