Adaptive Step-Size Natural Gradient ICA Algorithm with Weighted Orthogonalization.
Xingjia TangXiufang ZhangJimin YePublished in: Circuits Syst. Signal Process. (2014)
Keyphrases
- natural gradient
- step size
- variable step size
- independent component analysis
- cost function
- blind source separation
- convergence rate
- faster convergence
- objective function
- learning algorithm
- optimization algorithm
- search space
- particle swarm optimization
- simulated annealing
- dynamic programming
- k means
- computational complexity
- face recognition
- speech recognition
- support vector machine
- function approximation
- optimal solution
- mixing matrix
- similarity measure