Results 31 to 40 of about 461,664 (195)

Meta-Model Framework for Surrogate-Based Parameter Estimation in Dynamical Systems

open access: yesIEEE Access, 2019
The central task in modeling complex dynamical systems is parameter estimation. This task is an optimization task that involves numerous evaluations of a computationally expensive objective function.
Ziga Luksic   +3 more
doaj   +1 more source

Surrogacy-Based Maximization of Output Power of a Low-Voltage Vibration Energy Harvesting Device

open access: yesApplied Sciences, 2020
The coreless microgenerators implemented in electromagnetic vibration energy harvesting devices usually suffer from power deficiency. This can be noticeably improved by optimizing the distribution of separate turns within the armature winding.
Marcin Kulik   +2 more
doaj   +1 more source

Enhancing Cooperative Coevolution for Large Scale Optimization by Adaptively Constructing Surrogate Models

open access: yes, 2018
It has been shown that cooperative coevolution (CC) can effectively deal with large scale optimization problems (LSOPs) through a divide-and-conquer strategy.
Chen, An   +3 more
core   +1 more source

Fast prediction and evaluation of gravitational waveforms using surrogate models [PDF]

open access: yes, 2013
[Abridged] We propose a solution to the problem of quickly and accurately predicting gravitational waveforms within any given physical model. The method is relevant for both real-time applications and in more traditional scenarios where the generation of
Field, Scott E.   +4 more
core   +6 more sources

Quantile-based optimization under uncertainties using adaptive Kriging surrogate models [PDF]

open access: yes, 2016
Uncertainties are inherent to real-world systems. Taking them into account is crucial in industrial design problems and this might be achieved through reliability-based design optimization (RBDO) techniques.
Bourinet, J. -M.   +3 more
core   +3 more sources

Data analysis-based framework for the design and assessment of chemical process plants: a case study in amine gas-treating systems

open access: yesFrontiers in Chemical Engineering
This work presents a process-integrity assessment framework to chemical process design that combines first principles, heuristics, vendor specifications, standards/codes, data analysis, and machine learning modelling, hypothesized as an efficient route ...
Rahul Gupta   +2 more
doaj   +1 more source

Physics-regularized neural network of the ideal-MHD solution operator in Wendelstein 7-X configurations

open access: yesNuclear Fusion, 2023
The computational cost of constructing 3D magnetohydrodynamic (MHD) equilibria is one of the limiting factors in stellarator research and design. Although data-driven approaches have been proposed to provide fast 3D MHD equilibria, the accuracy with ...
Andrea Merlo   +5 more
doaj   +1 more source

Study on the impact of uncertain design parameters on the performances of a permanent magnet-assisted synchronous reluctance motor

open access: yesScience and Technology for Energy Transition
In this paper, deterministic and robust design optimizations of a permanent magnet-assisted synchronous reluctance motor were performed to study the impact of different uncertain input parameters on the design.
Reyes Adán Reyes   +3 more
doaj   +1 more source

Black-hole kicks from numerical-relativity surrogate models [PDF]

open access: yes, 2018
Binary black holes radiate linear momentum in gravitational waves as they merge. Recoils imparted to the black-hole remnant can reach thousands of km/s, thus ejecting black holes from their host galaxies.
Gerosa, Davide   +2 more
core   +4 more sources

Comparison of Circuit Models for ML-Assisted Microwave Circuit Design

open access: yesIEEE Journal of Microwaves
Machine-learning (ML) assisted microwave circuit design is an interesting complement to traditional topology-based design since it opens up previously unexplored design spaces that in some cases may offer better performance, or similar performance with a
Martin Sjodin   +4 more
doaj   +1 more source

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