Sparse representation classification via sequential Lasso screening.
Yun WangXu ChenPeter J. RamadgePublished in: GlobalSIP (2013)
Keyphrases
- sparse representation
- dictionary learning
- image classification
- sparse coding
- face recognition
- sparse reconstruction
- random projections
- image representation
- joint optimization
- feature extraction
- image patches
- high dimensional data
- negative matrix factorization
- sparse approximations
- feature selection
- sparsity constraints
- support vector
- signal processing
- dimensionality reduction
- feature vectors
- feature space
- text classification
- cross validation
- pattern recognition
- regularized least squares
- training set
- least squares
- decision trees
- norm minimization
- compressive sensing
- unsupervised learning
- dimension reduction
- bag of words
- natural images
- model selection