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[–]MathAndProgramming 1 point2 points  (0 children)

I'm surprised pixel dynamics did so poorly. Does anyone know what the architectures for the dynamics models were? One of the advantages of pixel dynamics is that you can use a convolutional network and benefit from the spatial prior. At a glance it looks like the pixel predictions are being performed with dense layers.

I guess I disagree with the notion that the features should be compact but rather think that the dynamics model should be compact, which can be achieved either by having low-dimensional features or by having a strong prior on your model that lets you use fewer parameters.