13 Linear Factor Models
13.1 Probabilistic PCA and Factor Analysis
13.2 Independent Component Analysis (ICA)
13.3 Slow Feature Analysis
13.4 Sparse Coding
\[\begin{eqnarray}
h^* &=& \arg \max_h p(h | x) \\
&=& \arg \max_h \lambda ||h||_1 + \beta || x - Wh ||_2^2 \\
\end{eqnarray}\]
13.5 Manifold Interpretation of PCA