In the present paper, an improved Surrogate-Assisted Evolutionary Algorithm is proposed. It combines the Differential Evolution algorithm with a quadratic surrogate approximation and a proper infill sampling strategy to choose appropriate sample points. The selection of the new candidate points is arranged to enhance both the local accuracy and the global optimum search. A comparison between performances of different evolutionary algorithms is carried out by searching the global minimum of two benchmark functions, by solving a dynamic identification problem of a three floor frame and by calibrating the non-linear stress-crack opening relation for Fibre-Reinforced Concrete specimens starting from experimental data.

A proper infill sampling strategy for improving the speed performance of a Surrogate-Assisted Evolutionary Algorithm / Vincenzi, Loris; Gambarelli, Paola. - In: COMPUTERS & STRUCTURES. - ISSN 0045-7949. - 178:(2017), pp. 58-70. [10.1016/j.compstruc.2016.10.004]

A proper infill sampling strategy for improving the speed performance of a Surrogate-Assisted Evolutionary Algorithm

VINCENZI, Loris;GAMBARELLI, PAOLA
2017

Abstract

In the present paper, an improved Surrogate-Assisted Evolutionary Algorithm is proposed. It combines the Differential Evolution algorithm with a quadratic surrogate approximation and a proper infill sampling strategy to choose appropriate sample points. The selection of the new candidate points is arranged to enhance both the local accuracy and the global optimum search. A comparison between performances of different evolutionary algorithms is carried out by searching the global minimum of two benchmark functions, by solving a dynamic identification problem of a three floor frame and by calibrating the non-linear stress-crack opening relation for Fibre-Reinforced Concrete specimens starting from experimental data.
2017
24-ott-2016
178
58
70
A proper infill sampling strategy for improving the speed performance of a Surrogate-Assisted Evolutionary Algorithm / Vincenzi, Loris; Gambarelli, Paola. - In: COMPUTERS & STRUCTURES. - ISSN 0045-7949. - 178:(2017), pp. 58-70. [10.1016/j.compstruc.2016.10.004]
Vincenzi, Loris; Gambarelli, Paola
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1126416
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