Sparse Representation of a Polytope and Recovery of Sparse Signals and Low-Rank Matrices.
T. Tony CaiAnru ZhangPublished in: IEEE Trans. Inf. Theory (2014)
Keyphrases
- sparse representation
- low rank matrices
- norm minimization
- signal processing
- dictionary learning
- sparse coding
- low rank
- compressive sensing
- sparse signal representation
- image patches
- image classification
- reconstruction error
- matrix completion
- high dimensional data
- singular value decomposition
- subspace learning
- compressed sensing
- joint optimization
- face recognition
- low rank approximation
- sparse coefficients
- random projections
- convex optimization
- dimensionality reduction
- negative matrix factorization
- object recognition
- image reconstruction
- feature extraction
- image processing