Authoritative documents identification based on Nonnegative Matrix Factorization.
Nacim Fateh ChikhiBernard RothenburgerNathalie Aussenac-GillesPublished in: IRI (2008)
Keyphrases
- nonnegative matrix factorization
- document clustering
- probabilistic latent semantic indexing
- negative matrix factorization
- matrix factorization
- document collections
- data representation
- least squares
- text documents
- keywords
- information retrieval
- spectral clustering
- xml documents
- nonnegative matrix
- information retrieval systems
- clustering method
- metadata
- data sets
- text classification
- signal processing
- sparsity constraints
- machine learning