Results 201 to 210 of about 4,853,850 (241)
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Co-Kriging Estimation of Nitrate-Nitrogen Loads in an Agricultural River
Water Resources Management, 2016Daily nitrate-nitrogen (NO3-N) loads in the Raccoon River, Iowa, were estimated using Ordinary kriging (OK), Cokriging (CK), and a standard rating curve method (LOADEST) based on a dataset of 3451 measurements of NO3-N concentration collected over 19 years.
Xiuyu Liang +3 more
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Co-Kriging strategy for structural health monitoring of bridges
Structural Health MonitoringComputational models are crucial in applied science and engineering, offering valuable insights on the behavior of strutures and mechanical systems. However, their effectiveness is often hindered by complexity and substantial time required for execution.
Henrique Cordeiro Novais +2 more
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Combustor Design Optimisation Using Co-Kriging of Steady and Unsteady Turbulent Combustion
Volume 2: Combustion, Fuels and Emissions, Parts A and B, 2011In the gas turbine industry, computational fluid dynamics (CFD) simulations are often used to predict and visualize the complex reacting flow dynamics, combustion environment and emissions performance of a combustor at the design stage. Given the complexity involved in obtaining accurate flow predictions and due to the expensive nature of simulations ...
Wankhese, Moresh J. +2 more
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A generalized hierarchical co-Kriging model for multi-fidelity data fusion
Structural and Multidisciplinary Optimization, 2020Multi-fidelity (MF) surrogate models have shown great potential in simulation-based design since they can make a trade-off between high prediction accuracy and low computational cost by augmenting the small number of expensive high-fidelity (HF) samples with a large number of cheap low-fidelity (LF) data.
Qi Zhou +4 more
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Increments for (CO)Kriging with Trend and Pseudo-Covariance Estimation
1994This paper presents an integrated account of the interpolation techniques of universal kriging and cokriging by way of the solution of a prediction problem in a situation akin to linear regression. Polynomial expectations of degree k in the coordinates of a region are eliminated by consideration of increments only, followed by the introduction of a ...
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RECURSIVE CO-KRIGING MODEL FOR DESIGN OF COMPUTER EXPERIMENTS WITH MULTIPLE LEVELS OF FIDELITY
International Journal for Uncertainty Quantification, 2014We consider in this paper the problem of building a fast-running approximation—also called surrogate model—of a complex computer code. The co-kriging based surrogate model is a promising tool to build such an approximation when the complex computer code can be run at different levels of accuracy.
Le Gratiet, Loic, Garnier, Josselin
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A new form of the cokriging equations
Mathematical Geology, 1997zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Long, Andrew E., Myers, Donald E.
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Co-Kriged Estimates of Transmissivities Using Jointly Water Level Data
1989The problem of estimating transmissivities in an aquifer from local measurements is generally approached from two different directions: (i) using only local measurements of transmissivities (e.g. from the interpretation of pumping tests), a first estimate of the transmissivity field is obtained by simple interpolation, using kriging for instance; (ii ...
S. Ahmed, G. de Marsily
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Sensitivity Analysis and Optimal Design with PC-co-kriging
2022Leifur Leifsson, Jethro Nagawkar
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Stochastic co-kriging for steady-state simulation metamodeling
2017 Winter Simulation Conference (WSC), 2017Xi Chen 0040 +2 more
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