Dictionary construction for sparse representation classification: A novel cluster-based approach.
Weiyang LiuYandong WenHui LiBing ZhuPublished in: ISCC (2014)
Keyphrases
- sparse representation
- dictionary learning
- image classification
- sparse coding
- compressive sensing
- joint optimization
- compressed sensing
- negative matrix factorization
- pattern recognition
- regularized least squares
- image patches
- face recognition
- image representation
- signal processing
- sparse reconstruction
- machine learning
- random projections
- sparse codes
- learned dictionary
- feature vectors
- sparse approximations
- decision trees
- image super resolution
- feature extraction
- feature space
- text classification
- support vector
- training set
- supervised learning
- dimensionality reduction
- support vector machine
- higher order
- test images
- high dimensional data
- norm minimization
- clustering algorithm
- feature selection
- model selection
- neural network