Gruber , AnthonyGunzburger , MaxJu , LiliTeng , Yuankai and Wang , Zhu. (2021). Nonlinear Level Set Learning for Function Approximation on Sparse Data with Applications to Parametric Differential Equations.
Numerical Mathematics: Theory, Methods and Applications. 14 (4).
839-861.
doi:10.4208/nmtma.OA-2021-0062