tensorflow 学习教程：
http://doc.codingdict.com/tensorflow/tfdoc/get_started/introduction.html
https://tensorflow.google.cn/tutorials/quickstart/beginner
Grappler 大致的优化类：
https://blog.csdn.net/gaofeipaopaotang/article/details/80621902
Grappler 详细的实现案例：
https://web.stanford.edu/class/cs245/slides/TFGraphOptimizationsStanford.pdf
tensorflow GraphViz/TensorBoard 可视化工具：
https://zhuanlan.zhihu.com/p/31919178