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Neural Networks(2)-Gradient desc

Neural Networks(2)-Gradient desc

作者: MWhite | 来源:发表于2017-10-30 23:36 被阅读0次
17/10/30 MWhite's learning notes

Recap

TIM截图20171030220137.jpg

Gradient descent algorithm

want to find w&b that minimize J(w,b)

w:=w-a*dJ(w,b)/dw
(a-learning rate)

Derivate&calculus

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Computation Graph

TIM截图20171030225155.jpg
TIM截图20171030230314.jpg

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