Keyphrases
- gradient method
- optimization methods
- global optimization
- derivative free
- image restoration and reconstruction
- optimization problems
- nonlinear programming
- globally convergent
- variational inequalities
- convergence rate
- convex optimization
- step size
- neural network
- optimization algorithm
- cost function
- objective function
- optimization method
- mathematical programming
- negative matrix factorization
- image representation
- convex functions
- nearest neighbor
- multiscale
- information retrieval