How to adjust the distribution of nonzero elements in sparse representation: A granular locality-preserving approach.
Yongchuan TangZejian LeePublished in: Inf. Sci. (2014)
Keyphrases
- sparse representation
- locality preserving
- manifold learning
- face recognition
- dictionary learning
- dimensionality reduction
- sparse coding
- random projections
- image classification
- high dimensional data
- image patches
- subspace learning
- image representation
- test images
- data representation
- negative matrix factorization
- feature extraction
- data distribution
- low dimensional
- hash functions
- singular value decomposition
- text classification