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misunderstanding of How to multiply delta with activation in back propagation NN #120

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zizuo2050 opened this issue Dec 4, 2022 · 0 comments
Open

misunderstanding of How to multiply delta with activation in back propagation NN #120

zizuo2050 opened this issue Dec 4, 2022 · 0 comments

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@zizuo2050
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I have a question in back propagation NN when compute for delta like
1 - 𝛿_3=(π‘Ž_3 - y)
2 - 𝛿_2=(Θ(2))𝑇𝛿_3βˆ—π‘”β€²(𝑧(2))
3 - Ξ”(𝑙)=Ξ”(𝑙)+𝛿(𝑙+1)(π‘Ž(𝑙))(𝑇) my question is how to compute for delta triangle which delta_2 = 25 element and a_1 = 400 element
@zizuo2050 zizuo2050 reopened this Dec 4, 2022
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