I think that the brain almost certainly approximates gradient descent. And here is why: Any learning episode only appears to change the brain a tiny bit. 1/5
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(With these bits he basically sets the stage for 6 years later saying BP is an “intrinsic gradient“ system and then generalized that concept to other dynamics like specific kinds of RNNs...)pic.twitter.com/dpQpuQwwkP
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thanks!
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