Graph Regularized Deep Sparse Representation for Unsupervised Anomaly Detection.
Shicheng LiShumin LaiYan JiangWenle WangYugen YiPublished in: Comput. Intell. Neurosci. (2021)
Keyphrases
- sparse representation
- regularized least squares
- unsupervised anomaly detection
- anomaly detection
- dictionary learning
- sparse reconstruction
- sparse coding
- norm minimization
- image classification
- sparsity constraints
- image representation
- joint optimization
- semi supervised
- compressive sensing
- intrusion detection
- face recognition
- image patches
- compressed sensing
- test images
- random projections
- orthogonal matching pursuit
- high dimensional data
- sparse approximations
- signal processing
- sparse coefficients
- image segmentation
- image processing
- negative matrix factorization
- feature space
- matrix factorization
- data sets
- probabilistic model