Surrogate Approximation of the Grad-Shafranov Free Boundary Problem via Stochastic Collocation on Sparse Grids.
Howard C. ElmanJiaxing LiangTonatiuh Sánchez-VizuetPublished in: CoRR (2021)
Keyphrases
- sparse approximation
- discrete random variables
- approximation schemes
- stage stochastic programs
- sparse data
- monte carlo sampling
- high dimensional
- co occurrence
- compressed sensing
- approximation error
- closed form
- object boundaries
- grid computing
- stochastic model
- sparse matrix
- sparse representation
- approximation algorithms
- error bounds
- relative error
- stochastic optimization
- approximation methods
- linear combination
- multiscale