Exercise 10, handnotes, open function example
CS-439 exercises · 79 · 5 · 5 Jul
Hi, On the third page of hand notes of exercise 10, there is an example of an open convex functi…
Question for exercise 10
CS-439 exercises · 36 · 1 · 5 Jul
Hi, I have a question about exercise 10. We are given an expression for the subgradient of a ma…
Open questions with many sub-parts are unfair
CS-439 Uncategorized · 58 · 2 · 4 Jul
After completing the exams of the previous years I wanted to say that the really long open question…
Exercise 26 ProblemSet4
CS-439 exercises · 30 · 1 · 4 Jul
Hello, I don't understand how did we continue to solve the question after defining \(y_{epsilon}\…
Exercise 43
CS-439 exercises · 40 · 0 · 3 Jul
Hi, could someone please help me understand the solution? I am not sure why we want \( x_t < 3/2 \s…
Exercice 25 - strong convexity
CS-439 exercises · 51 · 3 · 2 Jul
Hi, I think I am missing something for solving exercise 25. How do we know that \(\psi(y)\) is s…
Iterated Expectations, Thrm 10.1
CS-439 lectures · 39 · 3 · 1 Jul
Hello, When rereading the lecture notes about coordinate descent, I struggle understanding how…
Lab 9 ex 3
CS-439 exercises · 22 · 1 · 1 Jul
Hello, regarding ex.3 it's not clear to me why the final answer ( penultimate step ) is equivalent…
lecture 10, slide 7
CS-439 lectures · 59 · 5 · 1 Jul
Hi, In slide 7 of lecture 10, I don't understand how we can get from max to min in the last two …
ex10
CS-439 exercises · 22 · 1 · 1 Jul
ex10
Solution Exam 2020 question 37
CS-439 Uncategorized · 39 · 1 · 1 Jul
Hello, I have a question about solution of 2020 examination, question 37. The solution looks …
Exam cheatsheet
CS-439 Uncategorized · 33 · 3 · 1 Jul
Hello, Do the same rules as the 2020 exam apply for the cheatsheet (1x double sided A4 page) ? A…
Convexity of Open Domains
CS-439 lectures · 17 · 1 · 30 Jun
This is probably trivial but for quite a few theorems dom(f) needs to be convex. However, often dom…
Mini-Batch SGD
CS-439 lectures · 36 · 1 · 30 Jun
Hello, could you explain the second equality? And why the inner product after the third equality is…
Negative points in the exam?
CS-439 Uncategorized · 24 · 1 · 30 Jun
I wanted to know if the Multiple choice questions and the True/False questions will have negative p…
Exercise 16 Typo in Smoothness Equations ?
CS-439 exercises · 17 · 1 · 28 Jun
Hello, Could you please confirm that the y & x variables shown in blue are actually the correct on…
Frank wolfe referential
CS-439 lectures · 21 · 1 · 25 Jun
Hello, In the definition of the linear minimization oracle of Frank Wolfe algorithm, it makes se…
Midterm - ex 5.2 - PageRank
COM-308 Exam and Grading · 122 · 5 · 25 Jun
Hello, I would have a question about the ex 5.2.a in the midterm. If we look at nodes 1 and 5, I…
HW 4 - ex2
COM-308 Homeworks · 84 · 3 · 24 Jun
Hello, I am having a lot of trouble trying to understand how the matrix A, in the solutions to pa…
2020 Exam
CS-439 Uncategorized · 30 · 1 · 23 Jun
Would it be possible to have access to the 2020 exam as well as the 2019 and 2018 on github? Tha…