Reading

In NN code we shown in class, there are some points that you need to understand.
a. Tanh and the corresponding derivative.
双曲函数：
(shx)' = chx (chx)' = shx (thx)' = 1/(chx)^2
b. axis and keepdims
c. bp in coding

d. NO NEED to know Softmax yet. We’ll meet that again in CNN.
But you NEED to understand after 5 weeks.

Coding

Please do review the code what we have met in course.
If you choose to use python, please make sure your code in modern Python’s Way.
If you choose to use C++, please make sure you can code what we’ve told in C++ without hesitating.
Never forget to do coding exercise with Leetcode or Lintcode.

Reading

We were not talking about the solution of SVM. If you have interests in that, especially in Lagrange Multiplier (LM), try to find out your own solution. If you are too busy to do that, never mind, we’ll revisit LM in PCA study.
You have to grab this knowledge in this course. Good Luck!

Preparation

Have you ever forgotten our target for a very single moment? Our dream is to do CV by leveraging the advantages of CNN.
预习CNN基本知识，在电脑中准备Caffee or Pytorch等环境。