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stat.CO2026
A bridge representation of Gaussian Whittle-Matérn fields on compact metric graphs
David Bolin, Alexandre B. Simas, Jonas Wallin
Gaussian Whittle-Matérn fields form a flexible class of Gaussian processes on compact metric graphs, where spatial dependence is governed by the geometry and connectivity of the ne…
stat.CO2026
Adaptive Riemannian Manifold Hamiltonian Monte Carlo with Hierarchical Metric
Miika Kailas, Matti Vihola, Jonas Wallin
Hamiltonian Monte Carlo (HMC) and its dynamic extensions, such as the No-U-Turn Sampler (NUTS), are powerful Markov chain Monte Carlo methods for sampling from complex, high-dimens…