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Vanishing gradient
Exercises
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210
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5
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13 Jan '21
Hi,
In problem about vanishing gradient of problem set 8, I obtained the bound 1/4 given by deriv…
ALS with missing entries
Exercises
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207
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8
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12 Jan '21
Hi,
I wanted to confirm the inverse is taken after the sum right? it's not a sum of inverses?
…
Clarification adversarial example
Exercises
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159
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6
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12 Jan '21
Hi,
I have a question regarding the solution of the problem set 10. Here :
I'm struggling to understand the role of the weights on the vanishing gradient problem.…
conditional probability
Exercises
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110
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2
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8 Jan '21
Hi,
I was wondering if including pi in the probability expression (highlighted) is necessary, i…
how to compute the unitary matrix U?
Exercises
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84
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1
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6 Jan '21
For theory problem 1, the solution says to compute the matrix U by computing u_j = X v_j. But for m…
Use MSE instead of RMSE
Exercises
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95
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2
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6 Jan '21
Hello,
I don't understand why we can use the MSE for update instead of the RMSE. Technically, it…
Lab 13- Exercise 3
Exercises
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80
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1
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3 Jan '21
Hey !
Could anyone help me deriving the first 2 points of exercise 3 please.
I reckon we've don…
Exercise theory solutions
Exercises
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203
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4
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3 Jan '21
Would it be possible to get the solutions for exercise 4 (theory question)?
Thank you in advance…
theory question complexity
Exercises
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147
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4
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31 Dec '20
Hello,
I understand that we consider D different Wi for each dimension but how is the x N obtain…
Conclusion of 3.1
Exercises
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181
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5
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28 Dec '20
How do you get from:
$$w = (H + \mu I)^{-1} Hw*= (QLQ^T + \mu I)^{-1} QLQ^Tw*$$
to
$$w = Q(L…
Do constants matter in computational complexity ?
Exercises
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72
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2
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28 Dec '20
For gradient descent, the MSE is given by :
$$\frac{-1}{N}X^{T}(y - Xw)$$
Which for me gives…
Serie 10 Problem 2.1 Retrieving delta*
Exercises
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196
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5
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28 Dec '20
Hi,
I have a question for the last exercise serie problem 2.1. I have been able to get the foll…
Impact of choice of kernel on model complexity
Exercises
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78
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2
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23 Dec '20
Good afternoon,
I am currently revising all the material from this course and I am wondering how…
Lab 13 Matrix Factorization initialization
Exercises
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73
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1
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22 Dec '20
Hi, I had a couple of questions regarding the matrix factorization initialization in lab 13. First …
11.1
Exercises
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107
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2
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5 Dec '20
Hello,
i have a question about the solution:
![a.JPG](https://oknoname-crm1.s3.amazonaws.com/spir…
Lab 11 - Joint probability
Exercises
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106
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3
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1 Dec '20
Hey,
I know it's basic stuff but could you please explain why you get the N/2 in front of the e…
Solution Lab11
Exercises
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85
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4
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1 Dec '20
Could you please post the solutions for lab 11,
Thanks
Bug in the plotting function ?
Exercises
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84
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1
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24 Nov '20
Good evening,
I think there is an error in the plotting file for this week, I had to change two …