Data Mining - (Dimension|Feature) (Reduction)
Table of Contents
1 - About
- feature selection (returns a subset of the features)
- and feature extraction (create new features that are functions of the original features)
This methods are some called “Model selection methods”.
They are an essential tool for data analysis, especially for big datasets involving many predictors.
2 - Articles Related
3 - Benefits
4 - Concept
- random projections
- feature hashing