Welcome to Deep learning Specialization
介绍了深度学习目前的发展状况以及未来的前景
Introdcution to Deep Learning
what’is a neural network?
抽象出来实际的神经网络如下图所示
Neural Network的两个特点；
（1）Neural networks are remarkably good at figuring out functions that accurately map from x to y.
（2）Most powerful in supervised learning.
此外还介绍了一个常用的**函数：ReLU函数
Supervised Learning with Neural Network
Neural Network的大部分成功应用基本都在Supervised Learning（但近期在无监督学习领域也有了一定的突破）