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Jakub Bartczuk

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Top posts (189) All Questions Answers | Votes Newest

59 If X and Y are uncorrelated, are X^2 and Y also uncorrelated? Sep 9 '17
11 Why does PCA feature reduction make accuracy dramatically worse? Sep 17 '17
8 Matrix factorization in recommender systems: adding a new user Jan 1 '18
8 What does “variational” mean? Apr 17 '18
7 Is linear regression obsolete? Sep 26 '17
6 If each neuron in a neural network is basically a logistic regression function, why multi layer is better? Sep 5 '17
6 Is PCA optimization convex? Sep 5 '17
6 Is the Decision Tree algorithm the best for supervised learning for a classificaiton problem with non-linear relationships? Mar 28 '18
6 Machine learning algorithms as matrix factorization Dec 18 '17
6 Proof that $K(x,y) = f(x)f(y)$ is a kernel Jan 9 '18
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