An adaptive accelerated proximal gradient method and its homotopy continuation for sparse optimization.
Qihang LinLin XiaoPublished in: Comput. Optim. Appl. (2015)
Keyphrases
- gradient method
- derivative free
- optimization methods
- convergence rate
- step size
- optimization algorithm
- optimization method
- convex formulation
- sparse representation
- natural gradient learning
- negative matrix factorization
- global optimization
- optimization problems
- convergence speed
- high dimensional
- information retrieval
- neural network