Bounds for the eigenvalues of block 2 × 2 Hermitian positive-definite matrices.
Lilia Yu. KolotilinaPublished in: Numer. Linear Algebra Appl. (2005)
Keyphrases
- positive definite matrices
- information theoretic
- kernel matrix
- positive definite
- sparse coding
- covariance matrix
- kernel methods
- sparse representation
- upper bound
- kernel function
- lower bound
- mutual information
- natural images
- low rank
- singular values
- feature space
- metric learning
- geometric structure
- image classification
- input space
- support vectors
- linear combination
- image representation
- reproducing kernel hilbert space
- generative model
- ls svm
- unsupervised learning
- support vector
- model selection
- generalization ability
- higher order
- visual words
- denoising
- singular value decomposition
- training samples