Fixing V and Finding U Now, assume we have 2 users, 3 movies, and a 2 by 3 matrix Y given by First element of U is: Y The second element of U is: = Our goal is to find U and V such that X = UVT closely approximates the observed ratings in Y. Assume we start by fixing V to initial values of [4, 2, 1]. Find the optimal 2 × 1 vector U in this case. (Express your answer in terms of X). 18 ? 2 ? 5

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Q: Please solve and show all steps.

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Q: refer  to  image  below  which  both  address  same  question.

A: Step 1: Step 2: Step 3: Step 4:

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