Results 41 to 50 of about 24,324,331 (382)

Grid Enabled Surrogate Modeling [PDF]

open access: yes, 2009
The simulation and optimization of complex systems is a very time consuming and computationally intensive task. Therefore, global surrogate modeling methods are often used for the efficient exploration of the design space, as they reduce the number of simulations needed.
Gorissen, Dirk   +3 more
openaire   +3 more sources

A Surrogate Model of Gravitational Waveforms from Numerical Relativity Simulations of Precessing Binary Black Hole Mergers [PDF]

open access: yes, 2017
We present the first surrogate model for gravitational waveforms from the coalescence of precessing binary black holes. We call this surrogate model NRSur4d2s. Our methodology significantly extends recently introduced reduced-order and surrogate modeling
Blackman, Jonathan   +6 more
core   +3 more sources

Energy analysis and surrogate modeling for the green methanol production under dynamic operating conditions

open access: yesFuel, 2022
Green methanol production, based on intermittent renewable energy sources, requires a more flexible operation mode and close integration with other sections, such as, the electrical grid and electrolysis processes.
Xiaoti Cui, S. Kær, M. Nielsen
semanticscholar   +1 more source

Computational fluid dynamics analysis and extended adaptive hybrid functions model-based design optimization of an explosion-proof safety valve

open access: yesEngineering Applications of Computational Fluid Mechanics, 2022
Extremely complex flow channels and multi-parameter, highly nonlinear thermal fluid–structure interactions are the main factors restricting the exploration mechanism and optimal design of explosion-proof valves.
Chaoyong Zong   +6 more
doaj   +1 more source

Influence of diesel surrogates on the behavior of simplified spray models [PDF]

open access: yes, 2012
Numerous experimental investigations make use of diesel surrogates to make the computational time reasonable. In the few studies where measured (surrogate and real diesel) and computed (surrogate only) results have been compared, the selection ...
F Battin-Leclerc   +6 more
core   +2 more sources

Surrogate Modeling of Nonlinear Dynamic Systems: A Comparative Study

open access: yesJournal of Computing and Information Science in Engineering, 2022
Surrogate models play a vital role in overcoming the computational challenge in designing and analyzing nonlinear dynamic systems, especially in the presence of uncertainty.
Ying Zhao   +4 more
semanticscholar   +1 more source

Surrogate-Based Bayesian Inverse Modeling of the Hydrological System: An Adaptive Approach Considering Surrogate Approximation Error

open access: yes, 2020
Bayesian inverse modeling is important for a better understanding of hydrological processes. However, this approach can be computationally demanding, as it usually requires a large number of model evaluations.
Chen, Dingjiang   +4 more
core   +1 more source

GTApprox: Surrogate modeling for industrial design [PDF]

open access: yesAdvances in Engineering Software, 2016
31 pages, 11 ...
Mikhail Belyaev   +6 more
openaire   +2 more sources

A Data Compression Strategy for the Efficient Uncertainty Quantification of Time-Domain Circuit Responses

open access: yesIEEE Access, 2020
This paper presents an innovative modeling strategy for the construction of efficient and compact surrogate models for the uncertainty quantification of time-domain responses of digital links. The proposed approach relies on a two-step methodology. First,
Paolo Manfredi, Riccardo Trinchero
doaj   +1 more source

Active learning to understand infectious disease models and improve policy making. [PDF]

open access: yesPLoS Computational Biology, 2014
Modeling plays a major role in policy making, especially for infectious disease interventions but such models can be complex and computationally intensive. A more systematic exploration is needed to gain a thorough systems understanding.
Lander Willem   +5 more
doaj   +1 more source

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