Semi-supervised dictionary learning via local sparse constraints for violence detection.
Tao ZhangWenjing JiaChen GongJun SunXiaoning SongPublished in: Pattern Recognit. Lett. (2018)
Keyphrases
- dictionary learning
- sparse representation
- semi supervised
- sparse coding
- semi supervised clustering
- pairwise constraints
- group sparsity
- unsupervised learning
- sparsity constraints
- sparse codes
- object detection
- generative model
- semi supervised learning
- object category recognition
- natural images
- signal recovery
- data sets
- face recognition
- image classification
- labeled data
- signal processing
- image patches
- active learning
- dictionary learning for sparse
- compressive sensing
- image representation
- supervised learning
- high dimensional
- multiscale