Nonlinear approximation of high-dimensional anisotropic analytic functions.
Diane GuignardPeter JantschPublished in: J. Approx. Theory (2024)
Keyphrases
- high dimensional
- low dimensional
- continuous functions
- high dimension
- diffusion equation
- anisotropic diffusion
- dimensionality reduction
- closed form
- linear functions
- linear approximation
- approximation methods
- numerical integration
- high dimensional feature space
- approximation algorithms
- nearest neighbor
- nonlinear functions
- basis functions
- data points
- parameter space
- error bounds
- similarity search
- high dimensional data
- kernel function
- diffusion processes
- image processing