On the Complexity of Nonnegative Matrix Factorization.
Stephen A. VavasisPublished in: SIAM J. Optim. (2009)
Keyphrases
- nonnegative matrix factorization
- probabilistic latent semantic indexing
- negative matrix factorization
- nonnegative matrix
- active set
- data representation
- matrix factorization
- least squares
- data sets
- spectral clustering
- original data
- principal component analysis
- computer vision
- unsupervised learning
- object recognition
- factor matrices
- objective function