机器学习- 吴恩达Andrew Ng 编程作业技巧

Posted 2021-06-21 架构师易筋

编程作业要求不能到网上找答案的原因，是因为要通过Resources下面的Tutorial
s和Week Lecture Notes里面都有详细的讲解。
编程题目往往答案就几句代码，直接得到答案，是不能够掌握本质的。
英文原话如下：

We also strongly encourage using the online Discussions to discuss ex- ercises with other students. However, do not look at any source code written by others or share your source code with others.

1. Week Lecture Notes

建议在编程之前先看一下当前Week Lecture Notes 因为这里面是有详细的公式推导和解析。
比如Week 2的地址：
https://www.coursera.org/learn/machine-learning/resources/QQx8l

2. Unit Test

单元测试，是老师提供的测试入参和结果对比
地址：https://www.coursera.org/learn/machine-learning/discussions/all/threads/0SxufTSrEeWPACIACw4G5w

举Ex1的Test Cases，比如输入computeCost( [1 2; 1 3; 1 4; 1 5], [7;6;5;4], [0.1;0.2] )，
验证输出是否为ans = 11.9450
地址：
https://www.coursera.org/learn/machine-learning/discussions/all/threads/5wftpZnyEeWKNwpBrKr_Fw

3. Tutorials

Tutorials的有详细解答的教程和讲解链接地址：
https://www.coursera.org/learn/machine-learning/discussions/all/threads/m0ZdvjSrEeWddiIAC9pDDA