Global convergence of modified multiplicative updates for nonnegative matrix factorization.
Norikazu TakahashiRyota HibiPublished in: Comput. Optim. Appl. (2014)
Keyphrases
- nonnegative matrix factorization
- global convergence
- global optimum
- convergence analysis
- convergence speed
- optimization methods
- data representation
- convergence rate
- matrix factorization
- negative matrix factorization
- least squares
- particle swarm
- original data
- spectral clustering
- objective function
- principal component analysis
- optimization method
- document clustering
- convex optimization
- hybrid algorithm
- data sets
- evolutionary algorithm
- step size
- search space
- global optimization
- text mining
- multiscale
- feature selection