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How to derive the slope of an optimal linear regression?
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259
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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
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224
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6
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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
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118
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11 Jan '21
Hello all !
I have trouble understanding the following question :
![scredden.jpg](https://oknona…
"It is good to let your model overfit"
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172
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4
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11 Jan '21
Hello,
I was quite surprised by this sentence (Q19) when I read it is correct. Therefore, I look…
question 20
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123
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1
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11 Jan '21
Hello,
I have a hard time understanding the rigorous way to go about these kinds of question
…
2018 exam problem 7
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311
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7
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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
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78
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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
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147
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11 Jan '21
Hello,
For this question: [quest.JPG](https://oknoname-crm1.s3.amazonaws.com/spirit/images/217/1…
Matrix factorization exercise
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177
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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
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144
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3
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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)
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276
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7
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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
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131
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11 Jan '21
Hello,
For this question in the mock exam 2018, I cannot find an example where the affirmation 1…
MLE vs MAP
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256
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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
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117
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11 Jan '21
![48DF1916-36F6-4C77-BD97-98BAC4E50D57.jpeg](https://oknoname-crm1.s3.amazonaws.com/spirit/images/9…
Questions on Glove
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243
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11 Jan '21
Problem 16 exams 2018 :
![Glove.jpg](https://oknoname-crm1.s3.amazonaws.com/spirit/images/657/3bbd…
question 16
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92
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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)
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218
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11 Jan '21
Hi! I am not sure to have understood what is exactly the computational complexity of ALS method, so…
Exam format
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198
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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
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145
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11 Jan '21
Hi,
Does anyone have any ideas how to do questions 3 (value of k that minimizes leave-one-out cros…