A Novel Supervised Structure Dictionary Learning for Classification Based on Sparse Representation.
Xin TangPatrick S. P. WangGuocan FengPublished in: Int. J. Pattern Recognit. Artif. Intell. (2012)
Keyphrases
- dictionary learning
- sparse representation
- sparse coding
- image classification
- image super resolution
- face recognition
- group sparsity
- compressive sensing
- signal processing
- reconstruction error
- unsupervised learning
- random projections
- image representation
- single image super resolution
- image patches
- generative model
- natural images
- supervised learning
- machine learning
- test images
- negative matrix factorization
- compressed sensing
- learning algorithm
- text classification
- dimensionality reduction
- semi supervised
- knn
- sparsity constraints
- object recognition