###### Exercise Problem Set 12
exercises · 158 · 6 · 18 Jan '22
Hello, For Problem Set 12, Question 2: ![week12q2.JPG](https://oknoname-crm1.s3.amazonaws.com/spi…
###### Lab 12 Problem 1
exercises · 90 · 1 · 18 Jan '22
Hi, 1) Could you please give me more details on how we obtain this result : (edit : figured it o…
###### Lab 9 Problem 3
exercises · 58 · 1 · 18 Jan '22
Hello, in the solutions it says that inserting H = QLQ^T into w = (H + muI)^-1 H w* leads to the a…
###### Problem set 3, compute the gradient for a cost function
exercises · 55 · 1 · 18 Jan '22
Hello, I don’t see that the provided solution gives us the behavior that we would expect. When w…
###### Lab 10 Problem 1 point 3 : theory FSGM and gradient
exercises · 122 · 5 · 17 Jan '22
In lab 10 (problem 1, point 3) I don't understand how the solution of of FSGM problem was derived, …
###### lab 13 gradients of Loss wrt to w and u
exercises · 77 · 2 · 17 Jan '22
Hello I can't figure out how to find the same gradients derived in lab 13, So i figured it would be…
###### Lab 12 Problem 1 Compute U, S efficiently
exercises · 54 · 1 · 14 Jan '22
1) possible typo In the solution "Let $$v_i$$, i = 1, ..., N, denote the columns of V" instead …
###### Lab 12, theory questions - problem 2
exercises · 67 · 2 · 10 Jan '22
Let X be symmetric matrix and X=USV^T its SVD decomposition. If X is positive semi-definite, SVD is…
exercises · 138 · 2 · 10 Jan '22
Hi ! Sorry if I am asking questions with obvious answers, but I went through some linear algebra co…
###### Lab10_Pb1_Minimizer Solution
exercises · 119 · 5 · 10 Jan '22
Hello, I don't really get how do we find delta* (cf picture) from the equality of the loss we der…
###### Lab07 Coordinate Descent (Ascent) for SVM
exercises · 80 · 1 · 9 Jan '22
Hi, After checking the solution of Lab07 and the lecture slide, I still feel puzzled about Coord…
###### Lab 7 problem 2
exercises · 114 · 2 · 7 Jan '22
Hello, For the first question of problem 2, would it be possible to have detailed passage from …
###### SGD Lab 7
exercises · 60 · 1 · 7 Jan '22
Hello, I do not understand why for the update of the weights, gamma is divided by #iters +1? …
###### Lab 9 Problem 3
exercises · 166 · 3 · 5 Jan '22
Hello, I can't seem to understand the calculation done in the first question of the exercise. I …
###### Lab 3 relative error plot
exercises · 59 · 1 · 5 Jan '22
Hello, I am a bit confused for the problem set 3, for the theory exercices part 2) cost function…
###### Lab 3 small typo
exercises · 45 · 1 · 3 Jan '22
Hello, for the solution of the lab 3 shouldn't be the x_n^T be a vector so in bold? ![Screenshot 2…
###### Lab 13 Solution possible typo
exercises · 60 · 1 · 30 Dec '21
Hi, In lab 13, when defining class MatrixFactorizationPredictor(Predictor), we have : self.m…
###### Lab 13 solutions
exercises · 59 · 2 · 30 Dec '21
Hi, I just realized that the solutions to lab 13 have not been published yet. Thanks for making …
###### lab 10
exercises · 52 · 2 · 13 Dec '21
Hello, I have a question regarding Problem 1. It is a simple question but I don't see how the Cauch…
###### Ex7 Question 1.2
exercises · 50 · 1 · 2 Dec '21
In the solution for this question, why do we multiply the gradient with *num_examples* since we jus…