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

Figure 5

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

(a) CPU time for 20 input variables and 50 sampling points

(b) CPU time for 20 input variables and 100 sampling points

(c) CPU time for 20 input variables and 200 sampling points

(d) CPU time for 20 input variables and 300 sampling points