title: What is right batch normalization function in Tensorflow?
body: <p>In tensorflow 1.4, I found two functions that do batch normalization and they look same:</p>
  
  <ol>
  <li><code>tf.layers.batch_normalization</code> (<a href="https://www.tensorflow.org/api_docs/python/tf/layers/batch_normalization" rel="noreferrer">link</a>)</li>
  <li><code>tf.contrib.layers.batch_norm</code> (<a href="https://www.tensorflow.org/api_docs/python/tf/contrib/layers/batch_norm" rel="noreferrer">link</a>)</li>
  </ol>
  
  <p>Which function should I use? Which one is more stable?</p>