http://info.usherbrooke.ca/hlarochelle/ift725/2_09_parameter_initialization.pdf
http://www.deeplearning.ai/ai-notes/initialization/?utm_source=email&utm_medium=newsletter&utm_campaign=BlogAINotesInTextMay082019
[Neural Network] {Université de Sherbrooke} L2.9 Param Initialization
原文：https://www.cnblogs.com/ecoflex/p/10884450.html
