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**inactive**. Browsing/searching possible.###### pca empirical covariance

Lectures
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124
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2
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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?

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260
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5
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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

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125
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2
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13 Jan '21

What is the Computational cost for projected gradient descent?

###### Mistake SVD annotated lecture

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94
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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

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72
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2
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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

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74
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12 Jan '21

Hi!
How does regularization solve this over-parametrized problem? With regularization, the number …

###### K-means

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119
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2
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12 Jan '21

what is the complexity of k means?
Is it N-P hard or O(N.K.D) ?

###### Truncated SVD

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103
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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

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109
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12 Jan '21

Hello !
I have some troubles understanding the following statement in the proof:
![ML.jpg](https:…

###### Convexity and unique minimum when matrices are the parameter

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78
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12 Jan '21

Hi,
How does the concept of convexity and conditions unique minimum extend to functions that dep…

###### randomized smoothing

Lectures
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67
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1
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12 Jan '21

Hello,
I don't understand this explanation. So we have a point x that has expected value of clas…

###### MAP and maximum likelihood criterion

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213
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7
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12 Jan '21

Hello everyone,
When reading the lecture note of 5a classification, I found it says that
"To …

###### Linear separability for linear regression.

Lectures
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326
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7
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12 Jan '21

Dear TAs,
I am struggling to understand why linear separability matters for linear regression. I…

###### how do we know link function

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93
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3
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12 Jan '21

Hi,
In parameter estimation since we don't know eta, how do we know the link function g needed to…

###### Computaional cost for grid search

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79
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2
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11 Jan '21

I am having trouble computing the computational cost for grid search. Can someone please help with …

###### gan objective vs individual losses

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59
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1
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11 Jan '21

hello,
I don't understand the link between the objective function and the individual losses. We …

###### GAN algorithm

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212
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4
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11 Jan '21

Hello,
For the GAN algorithm, there are two different versions, one in the original slides and on…

###### GAN NE and algorithm

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164
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4
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11 Jan '21

Hi,
I was looking at the GANS lecture for the NE definition and was wondering if it is local sho…

###### Duality: when is dual better than primal? (unclear)

Lectures
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61
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1
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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
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85
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3
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11 Jan '21

In lecture 10B, it was mentioned that K means clustering is NP-hard. Can you please explain what do…