(This isn't actually my homework, and in fact wasn't addressed in my homework, but I was confused about this because my homework hadn't addressed this)

For example if I have an array:

enter image description here

And I do max pooling with:

filter size = 2x2

stride = 1

I get: -1   6   7
8   6   7
9   4   4
(Layer Ln+1)

If I want to find the derivative from Ln+1 to Ln, I'm not sure what happens to the cell which would have contained the value 6 since it determines the output's center cell as well as the output's top middle cell.

enter image description here

I think I'm probably misunderstanding something about how to solve derivatives if it's connected to two equations.



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