[HTML][HTML] Polynomial chaos expansion for sensitivity analysis of model output with dependent inputs

TA Mara, WE Becker - Reliability Engineering & System Safety, 2021 - Elsevier
In this paper, we discuss the sensitivity analysis of model response when the uncertain
model inputs are not independent of one other. In this case, two different kinds of sensitivity …

Polynomial chaos expansions for uncertainty propagation and moment independent sensitivity analysis of seawater intrusion simulations

MM Rajabi, B Ataie-Ashtiani, CT Simmons - Journal of Hydrology, 2015 - Elsevier
Real world models of seawater intrusion (SWI) require high computational efforts. This
creates computational difficulties for the uncertainty propagation (UP) analysis of these …

[HTML][HTML] Physics informed neural networks for surrogate modeling of accidental scenarios in nuclear power plants

F Antonello, J Buongiorno, E Zio - Nuclear Engineering and Technology, 2023 - Elsevier
Licensing the next-generation of nuclear reactor designs requires extensive use of Modeling
and Simulation (M&S) to investigate system response to many operational conditions …

Using sparse polynomial chaos expansions for the global sensitivity analysis of groundwater lifetime expectancy in a multi-layered hydrogeological model

G Deman, K Konakli, B Sudret, J Kerrou… - Reliability Engineering & …, 2016 - Elsevier
The study makes use of polynomial chaos expansions to compute Sobol׳ indices within the
frame of a global sensitivity analysis of hydro-dispersive parameters in a simplified vertical …

Experimental study and modeling of final fracture conductivity during acid fracturing

H Mehrjoo, S Norouzi-Apourvari, H Jalalifar… - Journal of Petroleum …, 2022 - Elsevier
Successful acid fracturing operation could reduce formation damage and increase
production rate in a carbonate reservoir. Final fracture conductivity is a critical parameter that …

Moment-based metrics for global sensitivity analysis of hydrological systems

A Dell'Oca, M Riva, A Guadagnini - Hydrology and Earth …, 2017 - hess.copernicus.org
We propose new metrics to assist global sensitivity analysis, GSA, of hydrological and Earth
systems. Our approach allows assessing the impact of uncertain parameters on main …

Bootstrapped Artificial Neural Networks for the seismic analysis of structural systems

E Ferrario, N Pedroni, E Zio, F Lopez-Caballero - Structural Safety, 2017 - Elsevier
We look at the behavior of structural systems under the occurrence of seismic events with
the aim of identifying the fragility curves. Artificial Neural Network (ANN) empirical …

DGSA: A Matlab toolbox for distance-based generalized sensitivity analysis of geoscientific computer experiments

J Park, G Yang, A Satija, C Scheidt, J Caers - Computers & geosciences, 2016 - Elsevier
Sensitivity analysis plays an important role in geoscientific computer experiments, whether
for forecasting, data assimilation or model calibration. In this paper we focus on an extension …