Keyphrases
- kernel principal component analysis
- high dimensional
- kernel pca
- discriminant analysis
- feature extraction
- principal component analysis
- kernel function
- principal components
- preprocessing
- feature space
- kernel methods
- classification method
- face recognition
- kernel matrix
- sparse representation
- feature vectors
- knn
- k means
- linear discriminant analysis
- pattern recognition
- input space
- extracted features
- support vector
- high dimensional feature space
- pairwise