Coordinate projected gradient descent minimization and its application to orthogonal nonnegative matrix factorization.
Flávia ChoroburaDaniela LupuIon NecoaraPublished in: CDC (2022)
Keyphrases
- nonnegative matrix factorization
- objective function
- probabilistic latent semantic indexing
- nonnegative matrix
- negative matrix factorization
- data representation
- matrix factorization
- active set
- principal component analysis
- least squares
- spectral clustering
- regularization term
- sparsity constraints
- document clustering
- information retrieval systems
- nonnegative matrix tri factorization
- factor matrices
- natural language