title: What is the use of a *.pb file in TensorFlow and how does it work?
body: <p>I am using some implementation for creating a face recognition which uses <a href="https://drive.google.com/file/d/0B5MzpY9kBtDVZ2RpVDYwWmxoSUk" rel="noreferrer">this file</a>:</p>
  
  <p>"facenet.load_model("20170512-110547/20170512-110547.pb")"</p>
  
  <p>What is the use of this file? I am not sure how it works.</p>
  
  <p>console log :</p>
  
  <pre><code>Model filename: 20170512-110547/20170512-110547.pb
  distance = 0.72212267
  </code></pre>
  
  <p>Github link of the actual owner of the code
  <a href="https://github.com/arunmandal53/facematch" rel="noreferrer">https://github.com/arunmandal53/facematch</a></p>