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by Digitalis33
1947 days ago
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DeepMind, Hinton, et al are still convinced that the brain must be doing something like backprop. See Lillicrap address all common objections to backprop in the brain: https://www.youtube.com/watch?v=vbvl0k-aUiE&ab_channel=ELSCV... Also from their paper Backpropagation in the brain: "It is not clear in detail what role feedback
connections play in cortical computations,
so we cannot say that the cortex employs
backprop-like learning. However, if feedback
connections modulate spiking, and spiking
determines the adaptation of synapse
strengths, the information carried by the
feedback connections must clearly influence
learning!" |
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