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Jakub Bartczuk
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Machine Learning Engineer

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60 If X and Y are uncorrelated, are X^2 and Y also uncorrelated? Sep 9 '17
13 Why does PCA feature reduction make accuracy dramatically worse? Sep 17 '17
12 Matrix factorization in recommender systems: adding a new user Jan 1 '18
12 What does "variational" mean? Apr 17 '18
9 Proof that $K(x,y) = f(x)f(y)$ is a kernel Jan 9 '18
9 What exactly happens when I do a feature cross? Mar 4 '18
8 Is linear regression obsolete? Sep 26 '17
8 If each neuron in a neural network is basically a logistic regression function, why multi layer is better? Sep 5 '17
8 Is PCA optimization convex? Sep 5 '17
8 is cost function of logistic regression convex or not? Jun 12 '19
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