A non-convex relaxation approach to sparse dictionary learning.
Jianping ShiXiang RenGuang DaiJingdong WangZhihua ZhangPublished in: CVPR (2011)
Keyphrases
- dictionary learning
- convex relaxation
- sparse coding
- sparse representation
- sparse approximation
- convex optimization
- globally optimal
- multi label
- multistage
- image classification
- multiple kernel learning
- natural images
- optimization methods
- unsupervised learning
- data sets
- image patches
- data analysis
- feature extraction
- image representation
- higher order
- supervised learning
- feature selection
- semi supervised
- light field
- neural network
- feature vectors