Novel Two-Stage Method for Low-Order Polynomial Model

Figure 3

of 2RS, 2IRS, KRG1, KRG2, RBFG, and RBFM for different benchmark problems. (a) 2-variable Goldstein-Price function (GP-2), (b) 2-variable Branin-Hoo function (BH-2), (c) 3-variable Perm function (PM-3), (d) 3-variable Cubic-Polynomial function (CP-3), (e) 4-variable Power-Sum function (PS-4), (f) 4-variable Hartmann function (HM-4), (g) 10-variable Zakharov function (ZH-10), (h) 15-variable Dixon-Price function (DP-15), and (i) 20-variable Welch et al. (1992) function (WE-20).

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