Relative gradient speeding up additive updates for nonnegative matrix factorization.
Weixiang LiuNanning ZhengXi LiPublished in: Neurocomputing (2004)
Keyphrases
- nonnegative matrix factorization
- probabilistic latent semantic indexing
- data representation
- negative matrix factorization
- matrix factorization
- least squares
- spectral clustering
- active set
- nonnegative matrix
- document clustering
- original data
- principal component analysis
- objective function
- data mining
- collaborative filtering
- knowledge discovery
- sparsity constraints
- feature selection
- machine learning