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I have constructed a CNN that utilizes max-pooling layers. I have found with these layers that, should I remove them, my network performs ideally with every output and gradient at each layer having a variance close to 1. However, if they are included, the variance skyrockets.

This makes sense, of course, as a max-pooling layer takes the maximum of an area, which must incur a positive bias as larger numbers are chosen.

I would just like to know what methods are typically used to combat this.

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  • $\begingroup$ Remove max pooling obviously :) Seriously, if you have bias/variance problem batch normalization, layer normalization, instance normalization etc sometime helps. $\endgroup$ – mirror2image Jul 1 '19 at 6:19

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