Spatially Coherent Clustering Based on Orthogonal Nonnegative Matrix Factorization.
Pascal FernselPublished in: CoRR (2021)
Keyphrases
- nonnegative matrix factorization
- probabilistic latent semantic indexing
- data representation
- negative matrix factorization
- matrix factorization
- spectral clustering
- active set
- nonnegative matrix
- least squares
- principal component analysis
- document clustering
- original data
- image classification
- sparse representation
- text mining
- sparsity constraints
- image processing