Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- face recognition
- image classification
- joint optimization
- compressed sensing
- random projections
- sparse reconstruction
- negative matrix factorization
- object tracking
- signal processing
- dimensionality reduction
- image patches
- reconstruction error
- compressive sensing
- basis vectors
- regularized least squares
- sparse approximations
- computer vision
- sparse learning
- high dimensional data
- image processing
- unsupervised learning
- pattern recognition
- norm minimization
- sparse codes
- neural network