Nonnegative Sparse Representation of Signals With a Determinant-Type Sparsity Measure Based on the DC Programming.
Benying TanShuxue DingYujie LiXiang LiPublished in: IEEE Access (2018)
Keyphrases
- sparse representation
- signal processing
- dictionary learning
- sparse coding
- image classification
- image patches
- sparse reconstruction
- dc programming
- face recognition
- compressed sensing
- random projections
- negative matrix factorization
- high dimensional data
- sparse approximations
- joint optimization
- sparsity constraints
- compressive sensing
- linear programming
- dimensionality reduction
- nonnegative matrix factorization
- sparse coefficients
- similarity measure
- exact penalty
- data sets
- sparse signal representation
- image representation
- denoising
- nearest neighbor
- probabilistic model
- data analysis
- image processing