Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

  7. current community

    your communities

    more stack exchange communities

    company blog
Cross Validated
Meta user
Network profile
4,165
reputation
1
8
32

Jakub Bartczuk

Machine Learning Engineer

178
answers
7
questions
~114k
people reached

Communities (12)

Top network posts

Top tags (185)

Score 134
Posts 99
Posts % 54
Score 54
Posts 32
Score 40
Posts 27
Score 35
Posts 21
Score 28
Posts 19
Score 26
Posts 23
View all tags →

Top posts (185) 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
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 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
6 Is the Decision Tree algorithm the best for supervised learning for a classificaiton problem with non-linear relationships? Mar 28 '18
6 Is a kernel function basically just a mapping? Nov 29 '18
View all questions and answers →

Badges (41)

Gold

1

Rarest

Silver

8

Rarest

Bronze

32

Rarest

View all badges →