Cross Validated
Sponsored by
Sponsored logo
Profile Activity
Meta user
Network profile
5,265
reputation
1
12
35

Jakub Bartczuk

Machine Learning Engineer

190
answers
6
questions
~229k
people reached

Communities (18)

Top network posts

Top tags (187)

Score 187
Posts 110
Posts % 56
Score 76
Posts 37
Score 48
Posts 26
Score 41
Posts 21
Score 37
Posts 21
Score 35
Posts 23
View all tags →

Top posts (196)

All Questions Answers
Votes Newest
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
10 What does “variational” mean? Apr 17 '18
9 Proof that $K(x,y) = f(x)f(y)$ is a kernel Jan 9 '18
8 What exactly happens when I do a feature cross? Mar 4 '18
8 If each neuron in a neural network is basically a logistic regression function, why multi layer is better? Sep 5 '17
8 is cost function of logistic regression convex or not? Jun 12 '19
7 Is a kernel function basically just a mapping? Nov 29 '18
7 Is linear regression obsolete? Sep 26 '17
View all questions and answers →

Badges (48)

Gold

1

Rarest

Silver

12

Rarest

Bronze

35

Rarest

View all badges →

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.