Feature selection Flashcards
1
Q
What is feature selection? Why we use it?
A
6 / 18-20
2
Q
Write down the optimization problem for selecting k features that minimize the empirical risk. Is it a polynomial algorithm? Which algorithm solve this problem?
A
6 / 21 and 23
3
Q
How Subset Selection works? Algorithm with training and with validation. Complexity?
A
6 / 22 and 27
4
Q
How Forward Selection works? Algorithm with training and with validation
A
6 / 24 and 28
5
Q
How Backward Selection works? Algorithm with training and with validation
A
6 / 25
