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Signal processing
From this tweet:
The marginals \(fX\) and \(fY\) of a joint distribution \(f(x, y)\) can be seen as the Radon transform of \(f(x,y)\) in the \(θ=0\) and \(θ=π/2\) directions.
Similarly, a joint distribution can be thought of as an optimal transport solution to an undersampled tomography result.
Bibliography
Radon transform
Last changed  authored by Hugo Cisneros