A Fast Non-Smooth Nonnegative Matrix Factorization for Learning Sparse Representation.
Zuyuan YangYu ZhangWei YanYong XiangShengli XiePublished in: IEEE Access (2016)
Keyphrases
- sparse representation
- dictionary learning
- nonnegative matrix factorization
- negative matrix factorization
- learning algorithm
- image classification
- unsupervised learning
- image patches
- face recognition
- dimensionality reduction
- image representation
- sparse coding
- unsupervised feature selection
- data sets
- basis vectors
- matrix factorization
- active learning
- neural network