Low-Dimensional Polytope Approximation and Its Applications to Nonnegative Matrix Factorization.
Moody T. ChuMatthew M. LinPublished in: SIAM J. Sci. Comput. (2008)
Keyphrases
- signal processing
- nonnegative matrix factorization
- low dimensional
- principal component analysis
- matrix decomposition
- probabilistic latent semantic indexing
- negative matrix factorization
- dimensionality reduction
- matrix factorization
- high dimensional
- data representation
- image processing
- least squares
- high dimensional data
- feature space
- spectral clustering
- original data
- document clustering
- nonnegative matrix
- sparsity constraints
- data points
- multidimensional scaling
- feature extraction
- low rank
- singular value decomposition
- nearest neighbor
- data analysis
- digital libraries