3 papers
stat.ME2026
An ensemble-based approach for multi-fidelity emulation and adaptive sampling
Hossein Mohammadi
High-resolution simulation models are essential for representing complex physical systems, yet their substantial computational cost severely limits the number of feasible high-fide…
stat.ME2024
Sequential adaptive design for emulating costly computer codes
Hossein Mohammadi, Peter Challenor
Gaussian processes (GPs) are generally regarded as the gold standard surrogate model for emulating computationally expensive computer-based simulators. However, the problem of trai…
stat.ME2024
Emulating complex dynamical simulators with random Fourier features
Hossein Mohammadi, Peter Challenor, Marc Goodfellow
A Gaussian process (GP)-based methodology is proposed to emulate complex dynamical computer models (or simulators). The method relies on emulating the numerical flow map of the sys…