pihnn.utils.RAD_sampling

pihnn.utils.RAD_sampling(boundary, model, fine_grid=10000)

Employ the RAD adaptive sampling from Wu et al. [2023].

Parameters:

• boundary (pihnn.geometries.boundary) – Domain boundary, needed to extract training and test points.

• model (pihnn.nn.PIHNN/pihnn.nn.DD_PIHNN) – Neural network model.

• fine_grid (int) – Number of points to sample for obtaining the residual statistical information.