difference of Supervised Learning and Unsupervised Learning

 

	Supervised Learning	Unsupervised Learning
output variable	존재함	존재하지 않음
function	classification, prediction, recognition	clustering, dimension reduction, density estimation, feature extraction
main methods	- Instance-based Learning  (Nearest Neighbor, k-NN, ...) - Bayesian Inference - Decision Tree - ANN, SVM - regression(Linear, Logistic,...)	- ANN, SOM  - EM algorithm, GMM  - PCA, ICA