Keyphrases
- nuclear norm
- norm minimization
- dictionary learning
- sparse representation
- sparse coding
- reconstruction error
- compressed sensing
- compressive sensing
- low rank
- sparsity constraints
- group sparsity
- minimization problems
- convex optimization
- image classification
- natural images
- image reconstruction
- high dimensional data
- face recognition
- random projections
- image denoising
- image patches
- linear combination
- unsupervised learning
- signal processing
- image representation
- missing data
- negative matrix factorization
- denoising
- multiscale
- generative model
- feature selection
- orthogonal matching pursuit
- object recognition
- low rank matrix
- matrix completion
- super resolution
- convex relaxation
- data mining
- kernel matrix
- image restoration
- matrix factorization
- singular value decomposition