Nonnegative spectral clustering and adaptive graph-based matrix regression for unsupervised image feature selection.
Xiuhong ChenXingyu ZhuPublished in: Multim. Tools Appl. (2021)
Keyphrases
- spectral clustering
- affinity matrix
- feature selection
- normalized cut
- image segmentation
- similarity matrix
- eigenvalue decomposition
- eigendecomposition
- objective function
- model selection
- semi supervised
- nonnegative matrix factorization
- pairwise
- laplacian matrix
- unsupervised learning
- image noise
- clustering method
- similarity measure
- k means
- negative matrix factorization
- covariance matrix
- data mining
- text classification
- least squares
- label propagation
- graph construction
- graph laplacian
- clustering algorithm
- computer vision