Group sparsity in dimensionality reduction of sparse representation.
Yang LiuXueming LiChenyu LiuYufang TangPublished in: WPMC (2014)
Keyphrases
- sparse representation
- group sparsity
- dimensionality reduction
- dictionary learning
- sparse coding
- high dimensional data
- compressive sensing
- high dimensional
- principal component analysis
- random projections
- low dimensional
- manifold learning
- pattern recognition
- high dimensionality
- image patches
- feature extraction
- data points
- unsupervised learning
- structured sparsity
- feature space
- discriminative power
- face recognition
- linear discriminant analysis
- singular value decomposition
- feature selection
- dimension reduction
- image classification
- test images