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What is a filter in the context of graph convolutional networks?

Short answer Check out the paper of Shuman et al. [1], it provides some background on Graph Signal Processing, including answers to your questions in sections II.C and III.A Long Answer Question 1 Yes,...
Accepted

Are the authors of the VAE paper writing the PDFs as a function of the random variables?

When it comes to notation/terminology, often, people in machine learning are (a bit?) sloppy, which causes a lot of confusion, especially for newcomers to the field or people not very math-savvy. I ...
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Accepted

What is the name of this letter $\mathcal{J}$?

It's an uppercase "J" from the math calligraphy alphabet, i.e. \mathcal{J} in latex. $\mathcal{J}$
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What does the notation "for t=T to 1,−1 do" in terms of time steps, in deep recurrent q network?

That notation should mean to go from time step $T$ to time step $1$ by a negative step $-1$, i.e. backward, so $T$, then $T-1$, then $T-2$, and so on until $1$. If you know Python, this should be ...
• 34.5k

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