Non-Negative Matrix Factorization, Convexity and Isometry
Nikolaos VasiloglouAlexander G. GrayDavid V. AndersonPublished in: CoRR (2008)
Keyphrases
- negative matrix factorization
- nonnegative matrix factorization
- sparse representation
- vector field
- principal component analysis
- matrix factorization
- document clustering
- constrained least squares
- spectral clustering
- image processing
- knowledge discovery
- text mining
- co occurrence
- document collections
- sparsity constraints