1 citations · 1 across the 4 of their papers we have counts for
7 papers
State Space Kriging model for emulating complex nonlinear dynamical systems under stochastic excitation
Kai Chenga, Iason Papaioannoua, MengZe Lyub +1
We present a new surrogate model for emulating the behavior of complex nonlinear dynamical systems with external stochastic excitation. The model represents the system dynamics in…
Bayesian improved cross entropy method for network reliability assessment
Jianpeng Chan, Iason Papaioannou, Daniel Straub
We propose a modification of the improved cross entropy (iCE) method to enhance its performance for network reliability assessment. The iCE method performs a transition from the no…
Rare event estimation with sequential directional importance sampling (SDIS)
Kai Cheng, Iason Papaioannou, Zhenzhou Lu +2
In this paper, we propose a sequential directional importance sampling (SDIS) method for rare event estimation. SDIS expresses a small failure probability in terms of a sequence of…
Uncertainty quantification of microstructure variability and mechanical behaviour of additively manufactured lattice structures
Nina Korshunova, Iason Papaioannou, Stefan Kollmannsberger +2
Process-induced defects are the leading cause of discrepancies between as-designed and as-manufactured additive manufacturing (AM) product behavior. Especially for metal lattices,…
Cross-entropy-based importance sampling with failure-informed dimension reduction for rare event simulation
Felipe Uribe, Iason Papaioannou, Youssef M. Marzouk +1
The estimation of rare event or failure probabilities in high dimensions is of interest in many areas of science and technology. We consider problems where the rare event is expres…
Sparse Polynomial Chaos expansions using Variational Relevance Vector Machines
Panagiotis Tsilifis, Iason Papaioannou, Daniel Straub +1
The challenges for non-intrusive methods for Polynomial Chaos modeling lie in the computational efficiency and accuracy under a limited number of model simulations. These challenge…