Keyphrases
- image denoising
- low rank
- graph laplacian
- sparse representation
- high dimensional data
- convex optimization
- denoising
- natural images
- total variation
- sparse coding
- spectral clustering
- euclidean space
- missing data
- linear combination
- low dimensional
- dimensionality reduction
- singular value decomposition
- matrix factorization
- image processing
- face recognition
- semi supervised
- image patches
- image classification
- kernel matrix
- signal processing
- high order
- data points
- wavelet coefficients
- negative matrix factorization
- image data
- nearest neighbor
- dimension reduction
- manifold learning
- high dimensional
- image representation
- norm minimization
- data analysis
- multiscale
- original data
- data sets
- pairwise
- random projections
- input image
- input data