Keyphrases
- principal component analysis
- principal components
- dimension reduction
- independent component analysis
- dimensionality reduction
- feature extraction
- covariance matrix
- low dimensional
- discriminant analysis
- face recognition
- feature space
- linear discriminant analysis
- neural classifier
- computer vision
- lower dimensional
- negative matrix factorization
- face images
- least squares
- special case
- database systems
- decision making