TensorFlow遇上Spark
http://www.jianshu.com/p/62b4ebb5a2f4
https://community.qingcloud.com/topic/332/%E6%B7%B1%E5%BA%A6%E5%AD%A6%E4%B9%A0%E4%B8%8E-spark-%E5%92%8C-tensorflow
https://databricks.com/blog/2016/01/25/deep-learning-with-apache-spark-and-tensorflow.html