Ensemble of Regression-Type and Interpolation-Type Metamodels

Cheng Yan, Jianfeng Zhu, Xiuli Shen, Jun Fan, Dong Mi and Zhengming Qian
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Cheng Yan: School of Aerospace Engineering, Xiamen University, Xiamen 361005, China
Jianfeng Zhu: School of Aerospace Engineering, Xiamen University, Xiamen 361005, China
Xiuli Shen: School of Energy and Power Engineering, Beihang University, Beijing 100191, China
Jun Fan: Army Aviation Institute, Beijing 100000, China
Dong Mi: AECC Hunan Aviation Powerplant Research Institute, Zhuzhou 412002, China
Zhengming Qian: AECC Hunan Aviation Powerplant Research Institute, Zhuzhou 412002, China

Energies, 2020, vol. 13, issue 3, 1-20

Abstract: Metamodels have become increasingly popular in the field of energy sources because of their significant advantages in reducing the computational cost of time-consuming tasks. Lacking the prior knowledge of actual physical systems, it may be difficult to find an appropriate metamodel in advance for a new task. A favorite way of overcoming this difficulty is to construct an ensemble metamodel by assembling two or more individual metamodels. Motivated by the existing works, a novel metamodeling approach for building the ensemble metamodels is proposed in this paper. By thoroughly exploring the characteristics of regression-type and interpolation-type metamodels, some useful information is extracted from the feedback of the regression-type metamodels to further improve the functional fitting capability of the ensemble metamodels. Four types of ensemble metamodels were constructed by choosing four individual metamodels. Common benchmark problems are chosen to compare the performance of the individual and ensemble metamodels. The results show that the proposed metamodeling approach reduces the risk of selecting the worst individual metamodel and improves the accuracy of the used individual metamodels.

Keywords: metamodel; ensemble; individual; regression; interpolation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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