Question: Biased matrix factorization: Consider the factorization of an incomplete n d matrix D into an n k matrix U and a d

Biased matrix factorization: Consider the factorization of an incomplete n × d matrix D into an n × k matrix U and a d × k matrix V :

D ≈ UV T Suppose you add the constraint that all entries of the penultimate column of U and the final column of V are fixed to

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