Reliability Analysis of Structures by Iterative Improved Ensemble of Surrogate Method

Table 2

Summary of surrogate modeling strategies.

Acronym	Description
KRG-con	The Kriging model with constant regression
KRG-lin	The Kriging model with linear regression
KRG-qua	The Kriging model with quadratic regression
EH	The ensemble of surrogates which is constructed by the heuristic method of Goel et al. [1]
EM	The ensemble of surrogates which is based on minimizing GMSE method in Acar and Rais-Rohani [15]
ER	The ensemble of surrogates which is based on recursive arithmetic average technique of Zhou et al. [16]
ERR	The ensemble of surrogates which is constructed based on our proposed method