Sparsity estimation from compressive projections via sparse random matrices.
Chiara RavazziSophie M. FossonTiziano BianchiEnrico MagliPublished in: EURASIP J. Adv. Signal Process. (2018)
Keyphrases
- compressive sensing
- sparse representation
- compressive sampling
- random projections
- projection matrix
- regularized regression
- signal reconstruction
- binary matrices
- high dimensional
- sparse matrices
- sparsity constraints
- projection matrices
- tensor factorization
- sparse matrix
- compressed sensing
- coefficient matrix
- elastic net
- dictionary learning
- sparse reconstruction
- sparse approximations
- sparse coding
- signal processing
- rows and columns
- three dimensional
- sparse data
- mixed norm
- image classification
- orthogonal matching pursuit
- basis pursuit
- feature space
- dimensionality reduction
- image representation
- image reconstruction