Machine Learning by Andrew Ng

Week 1 - Introduction

1. Supervised Learning
   可以分为以下两种：

• Regression problem

  1. housing price prediction
  2. right answers
  3. continuous value

• Classification problem

  1. breast cancer
  2. discrete value

2. Unsupervised Learning

• clustering algorithm
• cocktail party problem

Week 1 - Linear Regression with One Variable

• Model and Cost Function

cost function