Improved over-sampling techniques based on sparse representation for imbalance problem.
Xionggao ZouYueping FengHuiying LiShuyu JiangPublished in: Intell. Data Anal. (2018)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- image classification
- face recognition
- compressive sensing
- random projections
- compressed sensing
- reconstruction error
- joint optimization
- signal processing
- sparse reconstruction
- regularized least squares
- orthogonal matching pursuit
- piecewise smooth
- object tracking
- negative matrix factorization
- sparse approximations
- high dimensional data
- image representation
- test images
- class distribution
- image patches
- random sampling
- low rank
- natural images
- image features
- probabilistic model
- data analysis
- image segmentation
- computer vision
- sparse coefficients
- neural network