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Youtube error
Lectures · 79 · 4 · 12 Nov '20
Good morning, I was going to watch the second part of the video for today's course and youtube do…
Dropout method for disconnected networks
Lectures · 65 · 5 · 12 Nov '20
Hello, I was wondering how would the subnetwork be trained in the case it is disconnected (figu…
The definition of signal
Lectures · 62 · 2 · 12 Nov '20
Hi, In the Adversarial ML lecture (robust and nonrobust feature) mentioned that"The first compon…
Pytorch tensor for RELU
Lectures · 82 · 2 · 11 Nov '20
Hello, I try to solve a ML problem using a NN with RELU activation function. my data points loo…
Analysis of the bayes classifier: scaling everything by a constant
Lectures · 75 · 3 · 10 Nov '20
Hi, I have a question concerning the end of the analysis of the bayes classifier using all featu…
l infinity norm
Lectures · 86 · 3 · 10 Nov '20
Good evening, I wonder what does the \(l_\infty\) is. I don't remember seeing it somewhere else.…
Dropout
Lectures · 112 · 3 · 10 Nov '20
Hi, 1. What would be the definition (in simpler terms) of an [architecture ](https://youtu.be/lb…
Valid Padding output format
Lectures · 75 · 4 · 10 Nov '20
In the lecture notes, concerning the formula for the output format when applying valid padding, sho…
Vanishing gradient
Lectures · 79 · 3 · 10 Nov '20
Hi, I didn't quite understand the problem of having an activation function with vanishing gradie…
Primal formula
Lectures · 113 · 7 · 4 Nov '20
Hi, I don't understand why in the videos we've got this formula ![Screenshot from 2020-11-03 11…
KNN Last inequality
Lectures · 108 · 3 · 31 Oct '20
Hello, I have trouble understanding the last inequality of the KNN lecture notes. ![knn_last_inequ…
Don't understand this statement: 'Note that G(w, α) is convex in w and linear, hence concave, in α'
Lectures · 94 · 5 · 31 Oct '20
I am not sure how this conclusion is drawn in the Lecture 7 SVM: "Note that G(w, α) is convex in w…
Possibility to get lectures notes
Lectures · 69 · 2 · 30 Oct '20
HI, I would like to know if it's possible to have the annotated notes from Nicolas presentation? …
soft vs hard margin dual and alpha
Lectures · 96 · 2 · 30 Oct '20
Good Evening, I have a hard time seeing how we derive the constraints for alpha in the dual form…
Lecture 6 Part 1 GLM vector multiplication
Lectures · 85 · 2 · 30 Oct '20
Hi, In this video: https://youtu.be/EMrscGV8chg?t=5931 at 1:38:50 the GLM contains \(w^T * x\),…
Kernel
Lectures · 60 · 3 · 29 Oct '20
Hey, I don't see/understand the "fact" that : "We then derived an alternative formulation usi…
Set of classifiers is not convex
Lectures · 133 · 6 · 29 Oct '20
Hello, In the first part of the first lecture (w7), when talking about the convexity of the loss…
Question on Coordinate descent
Lectures · 93 · 2 · 28 Oct '20
Hi, Why is it easy to optimize via coordinate ascent to solve dual optimization? Could you explai…
SVM soft margin
Lectures · 75 · 2 · 28 Oct '20
I was wondering if the penalization for being on the wrong side of the margin (slack variables cost…
SVM Dual problem optimisation
Lectures · 151 · 4 · 28 Oct '20
When trying to find $$max_{\alpha\in R^N} : \alpha^T1 - \frac{1}{2\lambda}\alpha YXX^TY\alpha$$…