Face Recognition Using Topology Preserving Nonnegative Matrix Factorization.
Taiping ZhangBin FangGuanghui HeJing WenYuanyan TangPublished in: CIS (2007)
Keyphrases
- nonnegative matrix factorization
- topology preserving
- topology preservation
- competitive learning
- negative matrix factorization
- level set method
- binary images
- self organizing maps
- matrix factorization
- data representation
- least squares
- spectral clustering
- principal component analysis
- level set
- image segmentation
- feature extraction
- neural network
- original data
- document clustering
- unsupervised learning
- image data
- deformation field
- keywords