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Mixture of Linear Regression
Exams
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106
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2
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7 Jan '21
Hi!
I was doing the mock midterm exam of 2015, and I can't understand the solution of the last po…
problem9 exam 2018
Exams
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134
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2
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7 Jan '21
Hi,
I was wondering why the answer for problem 9 isn't dL/dw1=1. why would partial derivative w…
2 page cheatsheet
Exams
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264
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3
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7 Jan '21
Hello,
Would it be possible to have one more page as cheatsheet? The one page space restriction …
Order of complexity Newton Method (Mock exam 2014), question on Poisson regression
Exams
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138
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4
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7 Jan '21
Hello, I am struggling to understand the order of complexity that is given in the answers here.
…
Gradient - derivation
Exams
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110
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2
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7 Jan '21
Hello !
Has anyone developed this with sums and would be willing to share :)
I'd be grateful t…
2016 Problem 2 subgradients
Exams
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157
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2
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7 Jan '21
Hi, I am confused about the solution for this problem.
 then the sparse count matrix will have lots of undefined log(0…
Why does adding w*sgn(w) subject perturbed data to upper bound of max norm (epsilon)?
Lectures
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54
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1
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7 Jan '21
In the paper describing the fast gradient sign method, the authors explain why adversarial samples …
Mock Exam 2018 - Multiple Choice - Regularization
Exams
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160
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3
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6 Jan '21
Hello, here is a Multiple Choice Question and its solution
We add a regularization term becaus…
Explanation on Bayes Formula
Exams
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280
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9
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6 Jan '21
Hello, in the 2018 midterm, question 2, we are asked to write a probabilistic model such that the s…
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…
Bayesian networks and Belief propagation exercise - Mock exam 2014
Exams
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141
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5
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6 Jan '21
Hi! Since we didn't do Bayesian networks this year, we are not supposed to know how to do this exer…
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…
mock2018
Exams
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155
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4
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6 Jan '21
Hi,
I am not sure about the reasoning behind how we reach this answer in question 2 of mock 2018…
l1 regularization for features vs l2
Project 1
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207
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3
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6 Jan '21
Hi,
why is it a "better" /"good" idea to use l1 regularization as a feature selector rather than …
soft clustering
Lectures
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104
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3
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6 Jan '21
Hello,
I am having a hard time understanding what the color gradient represents on the graph fro…
Baye's net and probability question
Exams
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143
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2
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6 Jan '21
hi!
I notice many questions about Baye's net and factorization in past exams, I'm not quite sure…
L1-L2 REG - Which is better ?
Lectures
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91
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3
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6 Jan '21
Hey,
in the lecture notes 3d) we are asked
- when and why is sparsity in the model (L1) better…
Mock_2014 - Poisson closed form solution ?
Exams
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59
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1
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6 Jan '21
![Capture.JPG](https://oknoname-crm1.s3.amazonaws.com/spirit/images/196/aa929880cb194d859d3e9b61c51…
2014 mock exam poisson regression
Exams
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108
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3
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6 Jan '21
Hello,
in the aforementioned exercise we have:
![a.JPG](https://oknoname-crm1.s3.amazonaws.com/sp…