An Improved Approach for Estimating the Hyperparameters of the Kriging Model for High-Dimensional Problems through the Partial Least Squares Method

Figure 4

RE of the Griewank function in 20D over the interval . The experiments are based on the 10-Latin-hypercube design.

(a) RE (%) for 20 input variables and 50 sampling points

(b) RE (%) for 20 input variables and 100 sampling points

(c) RE (%) for 20 input variables and 200 sampling points

(d) RE (%) for 20 input variables and 300 sampling points