01. Machine Learning

Basic of machine learning

TOC

• Machine Learning
• Types of Machine Learning
• Supervised Learning
• Types of Supervised Learning

Machine Learning

• Filed of study that gives computers the ability to learn without being explicitly programmed. - Arthur Samuel, 1959

Types of Machine Learning

• Supervised learning
  • learning with labeled examples(training set)
  • Classification
• Unsupervised learning
  • learning with unlabeled data
  • grouping and clustering

Supervised Learning

• Most common problems
• Examples:
  • Object detection
  • Email spam
  • Prediction

Image 1. Object classification. (src: http://cs231n.github.io/classification/)

Types of Supervised Learning

• Regression
  • Predicting final exam score based on time spent

Hours	Score
10	90
9	80
7	?
3	50
2	30

Table 1. Prediction

• Binary classification
  • Pass/non-pass based on time spent

Hours	Score
10	PASS
9	PASS
7	?
3	FAIL
2	FAIL

Table 2. Binary Classification

• Multi-label classification
  • Letter grade(A, B, C, D and F) based on time spend

Hours	Score
10	A
9	B
7	?
3	D
2	F

Table 3. Multi-label Classification