title: The order of pooling and normalization layer in convnet
body: <p>I'm looking at <a href="https://github.com/tensorflow/models/blob/master/tutorials/image/cifar10/cifar10.py" rel="noreferrer">TensorFlow implementation of ORC on CIFAR-10</a>, and I noticed that after the first convnet layer, they do pooling, then normalization, but after the second layer, they do normalization, then pooling.</p>
  
  <p>I'm just wondering what would be the rationale behind this, and any tips on when/why we should choose to do norm before pool would be greatly appreciated. Thanks!</p>