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Bias-Variance decomposition
Exercises
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132
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5
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9 Oct '20
I think I got the right figure just as the exercise pdf shows. However, what I do not understand is…
Ridge regression: the right choice for lambda
Exercises
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94
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2
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6 Oct '20
Good morning !
Once we performed ridge regression for a given range of lambdas, how do we know whi…
MAE subgradient index i
Exercises
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97
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2
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3 Oct '20
Why is there an \(i\) here (in \( \left(x_{n}\right)_{\boldsymbol{i}} \) ) and there is no sigma wi…
Why standardise?
Exercises
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368
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5
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26 Sep '20
Hello.
Quick and silly question: why do we standardise data? I agree that it doesn't hurt, but h…
Q5 Outliers (ex02)
Exercises
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139
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4
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26 Sep '20
Hello, I am having a slight issue regarding the effect that the outliers have on the model fitting.…
Quick question - Grid Search
Exercises
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169
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6
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25 Sep '20
Hi there !
I have a question about the grid search implementation on the exercise sheet. In the …
Standardization vs Normalization
Exercises
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87
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2
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25 Sep '20
In the description of task A from exercise sheet 1 the two terms "standardization" and "normalizati…
How to get new material into NOTO
Exercises
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96
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4
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25 Sep '20
Hi,
I have loaded the github into EPFL's JupyterLab, however, I am unsure on how to get the newl…
[ CLOSED ] MAE loss function subgradient
Exercises
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105
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3
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24 Sep '20
Hey,
I'm not really sure of my grad for MAE loss function
I've this :
$$ \frac{\partial \m…
record solution of exercises?
Exercises
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54
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1
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24 Sep '20
Would it be possible to record the session where the solution of the exercises is shown?
I have an…
Cost Function: MSE /2 (?)
Exercises
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108
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2
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23 Sep '20
Hello :)
On last week lecture we defined MSE as:
$$
\operatorname{MSE}(\mathbf{w}):=\frac{1…
Zoom recording of the presentation of the solutions on Tuesdays
Exercises
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139
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4
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23 Sep '20
Hi,
Unfortunately I can't be online during the time of the zoom sessions where the solutions to …
Exercise 1, Task B
Exercises
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59
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2
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22 Sep '20
Hi!
For the task B I have a question about the solution:
def with_indices(p, q):
rows, co…
task C multi-variance likelihood
Exercises
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162
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5
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22 Sep '20
According to the given information, the log likelihood should be proportional to (data.T×covariance…
Exercise subtask (Task C)
Exercises
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192
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4
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21 Sep '20
Did somebody manage to rewrite the expression below without a loop?
... `for m,s in zip(means,sigm…
Task B : %timeit -o
Exercises
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97
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4
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21 Sep '20
Hi,
I just had a question concerning Task B about "%timeit -o f(p_big, q_big)"
What does the …
Lab/ex01 task A
Exercises
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96
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4
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18 Sep '20
Hello,
Is it possible that some rounding errors lead to have a very small mean (e-16 order of ma…
Exercise 3 formula
Exercises
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227
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5
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17 Sep '20
Is the formula right? From what I can see −1/2 * (xn−μ)T (Σ ^ −1 ) (xn−μ) will result in a (2 ,1) *…
Exercises Classrooms computers?
Exercises
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130
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4
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17 Sep '20
Hello! This is my first year at EPFL so I don't know which rooms on the campus are computer rooms, …
We can add LaTeX formulas here?
Exercises
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181
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12
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16 Sep '20
This is a LaTeX formula:
$$\frac{\partial L}{\partial \theta}=0$$