On the ensemble of metamodels with multiple regional optimized weight factors

Metamodels are often used as surrogates for expensive high fidelity computational simulations (e.g., finite element analysis). Ensemble of metamodels (EM), which combines various types of individual metamodels in the form of a weighted average ensemble, is found to have improved accuracy over the individual metamodels used alone. Currently, there are mainly two kinds of EMs called as pointwise EM and average EM. The pointwise EM generally has...