title: What is tf.bfloat16 "truncated 16-bit floating point"?
body: <p>What is the difference between tf.float16 and tf.bfloat16 as listed in <a href="https://www.tensorflow.org/versions/r0.12/api_docs/python/framework/tensor_types" rel="noreferrer">https://www.tensorflow.org/versions/r0.12/api_docs/python/framework/tensor_types</a> ?</p>
  
  <p>Also, what do they mean by "quantized integer"?</p>