Covariance and PCA for Categorical Variables.
Hirotaka NiitsumaTakashi OkadaPublished in: PAKDD (2005)
Keyphrases
- categorical variables
- covariance matrix
- principal component analysis
- real valued
- bayesian classifier
- face images
- data samples
- face recognition
- dimensionality reduction
- independent component analysis
- bayesian classifiers
- sample size
- feature extraction
- data sets
- bayesian network structures
- feature selection
- high dimensional
- pairwise
- bayesian networks
- bayesian network classifiers