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invertibility and other matrix property
Exams
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75
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1
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9 Jan '21
Hi,
Which properties of matrices are we supposed to know for the exam? By that I mean for exampl…
Exam 2017 Problem 22
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180
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2
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8 Jan '21
Hello,
I was wondering if the intersection between the two Train Error lines had any meaning or …
Training risk
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134
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3
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8 Jan '21
In final exam 2019, true/false question 15, it is said that training risk converges to true risk, w…
PCA in the exam 2019
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205
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5
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8 Jan '21
Could someone help to explain to me why this statement is wrong?
**In PCA, the first principal dir…
Gradient question - Exam 2018
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219
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5
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8 Jan '21
Hi! I can't understand the logic of problem 10 in 2018 exam.
The question is: for which x does th…
first eigenvalue of SVD Decomposition
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185
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3
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8 Jan '21
Good evening,
I question 6 of 2018's exam, the fact "In PCA, the first principale direction is t…
problem 15, exam 2018
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287
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3
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8 Jan '21
Hello,
I don't understand why there is an exact solution to the matrix factorization problem... …
Mixture of Linear Regression
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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
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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
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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
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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
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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
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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.
![2016subgradient.JPG](https://oknoname-…
Mock Exam 2018 - Multiple Choice - Regularization
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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…
Bayesian networks and Belief propagation exercise - Mock exam 2014
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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…
mock2018
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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…
Baye's net and probability question
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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…
Mock_2014 - Poisson closed form solution ?
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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
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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…