L0 Norm Optimization in Scrambled Sparse Representation Domain and Its Application to EtC System.
Takayuki NakachiHitoshi KiyaPublished in: IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (2020)
Keyphrases
- sparse representation
- norm minimization
- joint optimization
- regularized least squares
- dictionary learning
- sparse coding
- convex optimization
- compressed sensing
- image classification
- sparse learning
- face recognition
- reconstruction error
- high dimensional data
- image patches
- random projections
- piecewise smooth
- test images
- dimensionality reduction
- sparse approximations
- compressive sensing
- image representation
- matrix completion
- objective function
- decision trees
- sparse codes
- sparse coefficients
- neural network