- All data is labeled and the algorithms learn to predict the output from the input data.
- Classification , Regression
- Linear regression and classification , Random forest , Support vector machine , Bayesian, Neural networks
- All data is unlabeled and the algorithms learn to inherent structure from the input data.
- Clusterring, Association
- K-means , Apriori Algorithm
- Some data is labeled but most of it is unlabeled and a mixture of supervised and unsupervised techniques can be used.