Keyphrases
- kernel methods
- feature space
- kernel function
- support vector
- learning problems
- support vector machine
- learning tasks
- kernel matrix
- human faces
- machine learning
- face recognition
- kernel matrices
- kernel trick
- feature extraction
- kernel ridge regression
- similarity function
- gabor filters
- multiple kernel learning
- high dimensional feature space
- face images
- reproducing kernel hilbert space
- kernel pca
- multiple kernel
- maximum margin
- kernel fisher discriminant analysis
- data mining
- learning algorithm
- facial expressions