Machine Learning - Part 1: Definition, Supervised/Unsupervised Learning
- Definition
- Supervised Learning
- Regression
- Classification
- Unsupervised Learning
- Semi-supervised Learning
Definition
Arthur Samuel first coined the term Machine Learning . Accroding to him machine learning is
“The field of study that gives computers the ability to learn without being explicitly programmed.”
Tom Mitchell (1998) provides a more modern definition.
“A computer program is said to learn from experience E with respect to some class of tasks T and performance measure P, if its performance at tasks in T, as measured by P, improves with experience E.”
Example -
Playing checkers.
E = the experience of playing many games of checkers
T = the task of playing checkers.
P = the probability that the program will win the next game.
Supervised learning
Regression
Classification
Unsupervised Learning
Semi-supervised Learning
[incomplete]
Machine Learning - Part 2: Cost Function