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How to derive the slope of an optimal linear regression?
Exams · 259 · 5 · 12 Jan '21
Hello, How is alpha found for this problem? I understand that \alpha = cov(x,y)/var(x\) I a…
Question 1 confidence intervals
Exams · 224 · 6 · 11 Jan '21
Hi, Can anyone explain as to why we need 9N samples for the CI to shrink to sigma/3? I can't…
Problem 10 - Exam 2017 - Neural Net with ReLUs
Exams · 118 · 2 · 11 Jan '21
Hello all ! I have trouble understanding the following question : ![scredden.jpg](https://oknona…
"It is good to let your model overfit"
Exams · 172 · 4 · 11 Jan '21
Hello, I was quite surprised by this sentence (Q19) when I read it is correct. Therefore, I look…
question 20
Exams · 123 · 1 · 11 Jan '21
Hello, I have a hard time understanding the rigorous way to go about these kinds of question …
How to know where I should sit?
Exams · 157 · 2 · 11 Jan '21
How to know where I should sit?
2018 exam problem 7
Exams · 311 · 7 · 11 Jan '21
Hi, TA. I would like to ask why the partial derivative of w1 is not changed, I did not understand t…
Question 1 confidence intervals
Exams · 78 · 1 · 11 Jan '21
Hi, Can anyone explain as to why we need 9N samples for the CI to shrink to sigma/3? I can't…
Mock 2018: MCQ
Exams · 147 · 2 · 11 Jan '21
Hello, For this question: [quest.JPG](https://oknoname-crm1.s3.amazonaws.com/spirit/images/217/1…
Matrix factorization exercise
Exams · 177 · 2 · 11 Jan '21
Hi! I was trying to do this last exercise of 2016 exam, but I can't understand the solution to the …
Q23
Exams · 144 · 3 · 11 Jan '21
Can someone please explain the solution for Q23. I know how to do it using the long way (calculatin…
CNN with filter (Q24)
Exams · 276 · 7 · 11 Jan '21
Hello, In Q24 of the exam, what do they mean by "the data is laid out in a 1D fashion"? Do we h…
Mock 2018: MCQ
Exams · 131 · 2 · 11 Jan '21
Hello, For this question in the mock exam 2018, I cannot find an example where the affirmation 1…
MLE vs MAP
Exams · 256 · 4 · 11 Jan '21
Dear TAs, If we had no prior p(X=0)=1/3, could we say that the estimator that minimizes the prob…
Question2
Exams · 117 · 3 · 11 Jan '21
![48DF1916-36F6-4C77-BD97-98BAC4E50D57.jpeg](https://oknoname-crm1.s3.amazonaws.com/spirit/images/9…
Questions on Glove
Exams · 243 · 5 · 11 Jan '21
Problem 16 exams 2018 : ![Glove.jpg](https://oknoname-crm1.s3.amazonaws.com/spirit/images/657/3bbd…
question 16
Exams · 92 · 1 · 11 Jan '21
Hello, why isn't the last remark correct? Isn't logistic regression faster if we have less input…
ALS and SGD for matrix factorization (MCQ17)
Exams · 218 · 5 · 11 Jan '21
Hi! I am not sure to have understood what is exactly the computational complexity of ALS method, so…
Exam format
Exams · 198 · 3 · 11 Jan '21
I have a question regarding the MCQ. If more than 1 answer is correct (like in 2016 exam). Do we…
Problem 18 k-nearest neighbor classifier exam 2018
Exams · 145 · 2 · 11 Jan '21
Hi, Does anyone have any ideas how to do questions 3 (value of k that minimizes leave-one-out cros…