Dimensionality Reduction

Linear Projection

• principal component analysis (PCA)
• singular value decomposition
• random projection

Manifold Learning

This is also knon as nonlinear dimensionality reduction.

• isomap
• multidimensional scaling (MDS) - good for visualization
• locally linear embedding (LLE)
• t-distributed stochastic neighbor embedding (t-SNE)
  • sklearn
  • good for visualization
• dictionary learning
• random trees embedding
• independent component analysis