Supervised vs Unsupervised Machine Learning

Question 1

What is machine learning ?

Answer 1

Field of study that gives computer the ability to learn without being explicitly programmed

Question 2

Supervised learning

Answer 2

X -> Y or input to output
Learns from being given “right answers”

Question 3

Supervised learning types:

Answer 3

Regression
Classification

Question 4

Classification

Answer 4

Classification predict categories
from a small set of possible outputs
“Is this a cat or dog?”

Question 5

Regression

Answer 5

Predict a number from infinitely many possible outfits

Question 6

Unsupervised learning

Answer 6

Find something interesting in unlabelled data.

Question 7

Clustering

Answer 7

Groups similar data points together

Question 8

Anomaly detection

Answer 8

Find unusual data points

Question 9

Dimensionality reduction

Answer 9

Compress data using fewer numbers