نتایج جستجو برای: surrogate model

تعداد نتایج: 2121705  

Background: The chick embryo is a classical model to study embryonic development. However, most researchers have not studied the effect of embryonic manipulation on chick hatchability. To determine the effect of egg orientation and type of sealing film on the hatchability of cultured embryos, and to determine the fate of adulte stem cells injected into the blastoderm. Materials and Methods: Win...

2004
Yongsheng Lian Meng-Sing Liou Akira Oyama

In this paper we present an enhanced evolutionary algorithm (EA) to solve computationally expensive design optimization problems. In this algorithm we integrate a genetic algorithm (GA) with a local search method to expedite convergence of the GA. We first use a GA to generate a population of data by evaluating real functions, then we construct computationally cheap surrogate models based on th...

2013
Robert B. Gramacy Sébastien Le Digabel

This work introduces the use of the treed Gaussian process (TGP) as a surrogate model within the mesh adaptive direct search (MADS) framework for constrained blackbox optimization. It extends the surrogate management framework (SMF) to nonsmooth optimization under general constraints. MADS uses TGP in two ways: one, as a surrogate for blackbox evaluations; and two, to evaluate statistical crite...

2003
Özgür Erçetin Leandros Tassiulas

Web sites disseminate some of their information to surrogate caches in order to reduce the latency observed during the delivery of the information. The surrogates classify publishers under several classes with respect to their willingness-to-pay. Surrogate partitions the total cache capacity among different classes to provide a loose version of Quality of Service. In our model, publishers try t...

Journal: :Materials research proceedings 2023

Abstract. In the thermoforming process shearing of fiber reinforced thermoplastics (FRTP) leads to wrinkle formation and is therefore one most critical deformation mechanism. The target value predict shear angle which considered in this paper. To distribution during FRTPs a Convolutional Neural Network (CNN) used. approach based on consideration principal curvature characteristics, resulting re...

1995
Christian S. Jensen Richard T. Snodgrass

This short chapter introduces the SURROGATE data type, which is useful when modeling time-varying objects. Surrogates are unique identifiers that can be compared for equality, but the values of which cannot be seen by the users. In this sense, a surrogate is “pure” identity and does not describe a property (i.e., it has no observable value). For this reason, a SURROGATE data type cannot be trea...

Journal: :Applications in energy and combustion science 2022

There is an increasing demand for kinetic models of surrogate components to predict the combustion and emissions real fuels. In this paper, a new fuel mechanism, C3MechV3.3, proposed by Computational Chemistry Consortium (C3). This mechanism constructed based on C0 – C4 core with important species interest in complex surrogates such as hexane isomers, n-heptane, iso-octane, nC8 nC12 linear alka...

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