Document Classification using Nonnegative Matrix Factorization and Underapproximation.
Michael W. BerryNicolas GillisFrançois GlineurPublished in: ISCAS (2009)
Keyphrases
- document classification
- nonnegative matrix factorization
- negative matrix factorization
- matrix factorization
- data representation
- least squares
- text documents
- web documents
- text mining
- text categorization
- text classification
- document clustering
- classification algorithm
- principal component analysis
- original data
- spectral clustering
- bag of words
- objective function
- machine learning
- multiscale
- image segmentation
- decision trees