3 papers
physics.comp-ph2026
Bounding the Null Space: Interval-Based Uncertainty Quantification for Non-Identifiable Groundwater Models
Maximilian Ramgraber, Ksenia Bestuzheva
Groundwater models are routinely non-identifiable: sparse subsurface observations leave many combinations of parameters, states, and boundary conditions equally consistent with the…
stat.CO2026
Adaptive Nonlinear Data Assimilation through P-Spline Triangular Measure Transport
Berent à . S. Lunde, Maximilian Ramgraber
Non-Gaussian statistics are a challenge for data assimilation. Linear methods oversimplify the problem, yet fully nonlinear methods are often too expensive to use in practice. The…
stat.CO2025
A friendly introduction to triangular transport
Maximilian Ramgraber, Daniel Sharp, Mathieu Le Provost +1
Decision making under uncertainty is a cross-cutting challenge in science and engineering. Most approaches to this challenge employ probabilistic representations of uncertainty. In…