Results 21 to 30 of about 24,751,639 (251)

Research on an Accuracy Optimization Algorithm of Kriging Model Based on a Multipoint Filling Criterion

Mathematics, 2022
The optimization method based on the surrogate model has been widely used in the simulation and calculation process of complex engineering models. However, in this process, the low accuracy and computational efficiency of the surrogate model has always ...
Shande Li, Shuai Yuan, Shaowei Liu, Jian Wen, Qibai Huang   +4 more
doaj   +1 more source

Surrogate modeling approximation using a mixture of experts based on EM joint estimation [PDF]

, 2010
An automatic method to combine several local surrogate models is presented. This method is intended to build accurate and smooth approximation of discontinuous functions that are to be used in structural optimization problems.
Dimitri Bettebghor, Joseph Morlier, Samuelides, Manuel, Morlier, Joseph, Nathalie Bartoli, Bettebghor, Dimitri, Grihon, Stéphane, Manuel Samuelides, Bartoli, Nathalie, Stéphane Grihon   +9 more
core   +1 more source

Surrogate-based evolutionary optimization of aerodynamic performance and emitted sound for an impeller fan [PDF]

Centrifugalfans are widely used in building ventilation and air-conditioning systems butface increasing demands for higher energy efficiency, improved performance, and lower noise levels.
Gavin Tabor (21064196), Hamid Motamedi Zokae (22789499), David Moxey (8285391)   +2 more
core   +6 more sources

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

IEEE 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, Jovan Tanevski, Saso Dzeroski, Ljupco Todorovski   +3 more
doaj   +1 more source

Surrogate Model Based Approximate Optimization of Passive Type Deck Support Frame for Offshore Plant Float-over Installation

한국해양공학회지, 2021
The paper deals with comparative study of various surrogate models based approximate optimization in the structural design of the passive type deck support frame under design load conditions.
Dong Jun Lee, Chang Yong Song, Kangsu Lee   +2 more
doaj   +1 more source

Development of surrogate-optimization models for a novel transcritical power cycle integrated with a small modular reactor

Energy and AI
In recent years, various types of surrogate optimization models have been proposed to reduce the computational time and to improve the emulation accuracy.
Yili Zhang, Jacob Bryan, Geordie Richards, Hailei Wang   +3 more
doaj   +1 more source

Adaptive surrogate model-based optimization framework applied to battery pack design

Materials & Design, 2020
The efficiency represented by the computational costs for solving complex engineering optimization problems can be improved based on surrogate models. Adaptive sampling methods can effectively reduce the number of samples and enhance the accuracy of the ...
Huanwei Xu, Liangwen Liu, Miao Zhang
doaj   +1 more source

Sensitivity analysis and optimization method of partition surrogate model based on physical knowledge driven

Hangkong gongcheng jinzhan
The problem of "dimensionality disaster" of design variable is a key technical problem that restricts the application of current agent-based optimization algorithms.
SHAO Mengying, XIA Lu, ZHANG Wei, ZHAO Ke   +3 more
doaj   +1 more source

Surrogate based blended-wing-body underwater glider shape optimization design

Xibei Gongye Daxue Xuebao, 2021
In order to improve the design quality and optimization efficiency for blended-wing-body underwater glider(BWBUG) shape design optimization problems, a surrogate-based blended-wing-body underwater glider shape optimization(SBUGSO) framework is proposed ...

doaj   +1 more source

Some considerations regarding the use of multi-fidelity Kriging in the construction of surrogate models

, 2015
Surrogate models or metamodels are commonly used to exploit expensive computational simulations within a design optimization framework. The application of multi-fidelity surrogate modeling approaches has recently been gaining ground due to the potential ...
Toal, David J.J.
core   +1 more source