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annotate tvii/gradient_descent.py @ 44:857a606783e1

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[documentation] notes + stubs on gradient descent
author Jeff Hammel <k0scist@gmail.com>
date Mon, 04 Sep 2017 15:06:38 -0700
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857a606783e1 [documentation] notes + stubs on gradient descent
Jeff Hammel <k0scist@gmail.com>
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1 """
857a606783e1 [documentation] notes + stubs on gradient descent
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2 gradient descent for neural networks
857a606783e1 [documentation] notes + stubs on gradient descent
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3 """
857a606783e1 [documentation] notes + stubs on gradient descent
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4
857a606783e1 [documentation] notes + stubs on gradient descent
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5 # Each loop:
857a606783e1 [documentation] notes + stubs on gradient descent
Jeff Hammel <k0scist@gmail.com>
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6 # - computes predictions
857a606783e1 [documentation] notes + stubs on gradient descent
Jeff Hammel <k0scist@gmail.com>
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7 # - compute derivatives: dw, db
857a606783e1 [documentation] notes + stubs on gradient descent
Jeff Hammel <k0scist@gmail.com>
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8 # update: w = w - alpha * dw; b = b - ....
857a606783e1 [documentation] notes + stubs on gradient descent
Jeff Hammel <k0scist@gmail.com>
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