Spatially Coherent Clustering Based on Orthogonal Nonnegative Matrix Factorization.
Pascal FernselPublished in: J. Imaging (2021)
Keyphrases
- nonnegative matrix factorization
- probabilistic latent semantic indexing
- matrix factorization
- negative matrix factorization
- data representation
- least squares
- nonnegative matrix
- active set
- spectral clustering
- principal component analysis
- original data
- objective function
- sparsity constraints
- document clustering
- missing data
- factor matrices
- similarity measure
- data sets