Nonlinear approximation of functions based on nonnegative least squares solver.
Petr N. VabishchevichPublished in: Numer. Linear Algebra Appl. (2023)
Keyphrases
- least squares
- matrix approximation
- sparse linear
- nonlinear least squares
- nonnegative matrix factorization
- taylor series expansion
- set of basis functions
- levenberg marquardt
- parameter estimation
- approximation algorithms
- linear approximation
- robust estimation
- convex functions
- approximation error
- policy evaluation
- nonlinear functions
- canonical correlation analysis
- singular value decomposition
- smooth functions
- closed form
- taylor series
- basis functions
- neural network