When performing unsupervised learning, the machine is presented with unlabeled data. (Unlabeled data has no target.) Unsupervised learning algorithms seek to discover intrinsic patterns that underlie the data, such as a clustering parameter or a redundant parameter (dimension) that can be reduced.
| Framework | MITRE D3FEND |
| Ontology URI | d3f:UnsupervisedPreprocessing |
| Local Identifier | UnsupervisedPreprocessing |
| Publication Status | Exists in ontology only |