Improving Convergence Rate of Sign Algorithm using Natural Gradient Method.
Taiyo MineoHayaru ShounoPublished in: EUSIPCO (2021)
Keyphrases
- convergence rate
- gradient method
- step size
- learning rate
- convergence speed
- global convergence
- learning algorithm
- variable step size
- cost function
- faster convergence rate
- convex formulation
- optimization methods
- numerical stability
- expectation maximization
- particle swarm optimization
- global optimization
- computational efficiency
- negative matrix factorization
- multiresolution
- feature space
- objective function
- reinforcement learning