Low-rank graph preserving discriminative dictionary learning for image recognition.
Haishun DuLuogang MaGuodong LiSheng WangPublished in: Knowl. Based Syst. (2020)
Keyphrases
- image recognition
- low rank
- dictionary learning
- group sparsity
- sparse coding
- sparse representation
- semi supervised
- linear combination
- image classification
- sparsity constraints
- discriminative power
- face recognition
- missing data
- matrix factorization
- convex optimization
- high dimensional data
- pattern recognition
- singular value decomposition
- structured sparsity
- high order
- feature extraction
- unsupervised learning
- image representation
- feature selection
- active learning
- learning algorithm
- semi supervised learning
- natural images
- collaborative filtering
- image retrieval
- generative model
- dimensionality reduction