Back propagation for Pooling layer

Course Q&A Deep Learning Specialization Convolutional Neural Networks
1

Hi, I was just curious regarding back propagation in pooling layer. Say we have a CNN with a max pooling layer. When we backpropagate, we just have the max values in layer L. How do we figure out the values in the layer L-1 ?

2

Did you look at the programming assignment for the week regarding back propagation of pooling layers?

3

Not yet, I just finished the lectures for CNN week 1. I didn’t know that implementation was there in the assignment. Thanks for pointing it out.

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