Skip to main content

Research Repository

Advanced Search

Bayesian Treed Calibration: an application to carbon capture with AX sorbent

Konomi, B.; Karagiannis, G.; Lai, C.; Lin, G.

Bayesian Treed Calibration: an application to carbon capture with AX sorbent Thumbnail


Authors

B. Konomi

C. Lai

G. Lin



Abstract

In cases where field (or experimental) measurements are not available, computer models can model real physical or engineering systems to reproduce their outcomes. They are usually calibrated in light of experimental data to create a better representation of the real system. Statistical methods, based on Gaussian processes, for calibration and prediction have been especially important when the computer models are expensive and experimental data limited. In this paper, we develop the Bayesian treed calibration (BTC) as an extension of standard Gaussian process calibration methods to deal with non-stationarity computer models and/or their discrepancy from the field (or experimental) data. Our proposed method partitions both the calibration and observable input space, based on a binary tree partitioning, into subregions where existing model calibration methods can be applied to connect a computer model with the real system. The estimation of the parameters in the proposed model is carried out using Markov chain Monte Carlo (MCMC) computational techniques. Different strategies have been applied to improve mixing. We illustrate our method in two artificial examples and a real application that concerns the capture of carbon dioxide with AX amine based sorbents. The source code and the examples analyzed in this paper are available as part of the supplementary materials.

Citation

Konomi, B., Karagiannis, G., Lai, C., & Lin, G. (2017). Bayesian Treed Calibration: an application to carbon capture with AX sorbent. Journal of the American Statistical Association, 112(517), 37-53. https://doi.org/10.1080/01621459.2016.1190279

Journal Article Type Article
Acceptance Date Apr 15, 2016
Online Publication Date May 3, 2017
Publication Date May 3, 2017
Deposit Date Nov 10, 2016
Publicly Available Date Nov 11, 2020
Journal Journal of the American Statistical Association
Print ISSN 0162-1459
Electronic ISSN 1537-274X
Publisher Taylor and Francis Group
Peer Reviewed Peer Reviewed
Volume 112
Issue 517
Pages 37-53
DOI https://doi.org/10.1080/01621459.2016.1190279
Public URL https://durham-repository.worktribe.com/output/1401249

Files





You might also like



Downloadable Citations