Joint Sparse Recovery for Signals of Spark-Level Sparsity and MMV Tail-$\ell _{2, 1}$ Minimization.
Baifu ZhengCao ZengShidong LiGuisheng LiaoPublished in: IEEE Signal Process. Lett. (2021)
Keyphrases
- sparse representation
- norm minimization
- high dimensional
- dictionary learning
- sparsity constraints
- signal processing
- sparse approximations
- joint optimization
- regularization term
- objective function
- sparse coding
- higher level
- group lasso
- orthogonal matching pursuit
- blind source separation
- random projections
- sparse data
- neural network
- multiscale
- face recognition
- mixed norm
- norm regularization
- negative matrix factorization
- high dimensional data