An Algorithm for Randomized Nonnegative Matrix Factorization and Its Global Convergence.
Takao MasudaTsuyoshi MigitaNorikazu TakahashiPublished in: SSCI (2021)
Keyphrases
- nonnegative matrix factorization
- global convergence
- convergence rate
- active set
- negative matrix factorization
- convergence analysis
- cost function
- k means
- least squares
- optimization algorithm
- global optimum
- neural network
- hybrid algorithm
- optimization methods
- clustering method
- particle swarm
- input data
- information retrieval systems
- simulated annealing
- objective function
- multiscale
- similarity measure