The Convergence of Least-Squares Progressive Iterative Approximation for Singular Least-Squares Fitting System.
Hongwei LinQi CaoXiaoting ZhangPublished in: J. Syst. Sci. Complex. (2018)
Keyphrases
- least squares
- tikhonov regularization
- policy evaluation
- matrix approximation
- robust estimation
- convergence rate
- conjugate gradient algorithm
- parameter estimation
- image restoration
- error bounds
- approximation error
- sparse linear
- global convergence
- levenberg marquardt
- relative error
- iterative algorithms
- stationary points
- convergence speed
- approximation algorithms
- gauss seidel
- closed form
- update rule
- regularization parameter
- genetic algorithm