This forum is inactive. Browsing/searching possible.
pca empirical covariance
Lectures
·
124
·
2
·
24 Jan '21
hello,
I was wondering why in the empirical formula we don't have 1/N-1 instead of 1/N for covar…
Is GAN a zero-sum game?
Lectures
·
260
·
5
·
15 Jan '21
There's no doubt that GAN is a two-player game, but is it zero-sum?
Based on the definition of a z…
Computational cost for projected gradient descent
Lectures
·
125
·
2
·
13 Jan '21
What is the Computational cost for projected gradient descent?
Mistake SVD annotated lecture
Lectures
·
94
·
1
·
12 Jan '21
I believe the annotation at the end of the lecture is wrong. I believe it says U <--- EVD(X) wherea…
Convexity and NN
Lectures
·
72
·
2
·
12 Jan '21
Hello,
I was wondering why we don't use a convex activation (whose compositions would also be co…
Regulatization and over-parametrized problem
Lectures
·
74
·
1
·
12 Jan '21
Hi!
How does regularization solve this over-parametrized problem? With regularization, the number …
K-means
Lectures
·
119
·
2
·
12 Jan '21
what is the complexity of k means?
Is it N-P hard or O(N.K.D) ?
Truncated SVD
Lectures
·
103
·
2
·
12 Jan '21
Hi!
I'm a little confused about the dimensions of the matrices.
1) The Uk matrix has size D*K, t…
Proof of the SVD lemma
Lectures
·
109
·
2
·
12 Jan '21
Hello !
I have some troubles understanding the following statement in the proof:

Lectures
·
61
·
1
·
11 Jan '21
Hi!
I'm still confused as to which cases are better with dual or with primal. The formulation o…
K means
Lectures
·
85
·
3
·
11 Jan '21
In lecture 10B, it was mentioned that K means clustering is NP-hard. Can you please explain what do…