Compositional Uncertainty Analysis via Importance Weighted Gibbs Sampling for Coupled Multidisciplinary Systems Conference Paper uri icon


  • 2016, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved. This paper presents a novel compositional multidisciplinary uncertainty analysis methodology for systems with feedback couplings, and model discrepancy. Our approach incorporates aspects of importance resampling, density estimation, and Gibbs sampling to ensure that, under mild assumptions, our method is provably convergent in distribution. A key feature of our approach is that disciplinary models can all be executed offline and independently. Offline data is synthesized in an online phase that does not require any further model evaluations or any full coupled system level evaluations. We demonstrate our approach on a simple aerodynamics-structures system.

name of conference

  • 18th AIAA Non-Deterministic Approaches Conference

published proceedings

  • 18th AIAA Non-Deterministic Approaches Conference

author list (cited authors)

  • Ghoreishi, S. F., & Allaire, D. L.

citation count

  • 18

complete list of authors

  • Ghoreishi, Seyede Fatemeh||Allaire, Douglas L

publication date

  • January 1, 2016 11:11 AM