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Matrix decomposition refers to the process of factorizing a matrix into a product of smaller matrices. By decomposing a large matrix, one can efficiently perform many matrix algorithms.

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Non-negative matrix factorization in recommender systems

As I understand, in NMF we should have our three matrices elements non-negative. But I can't understand how to do it so far. Shouldn't we just initialize our factor matrices at the start with random p …
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