Crossover Method for Interactive Genetic Algorithms to Estimate Multimodal Preferences

Figure 18

Value of 𝐷_𝑖𝑎 in each generation. The results of the proposed method are depicted by the solid red line and those of the conventional method by the dotted blue lines. The number of landscapes is the number of trials by each method.

(a) Mean of 𝐷_𝑖𝑎 obtained from the search results of the 11 landscapes containing 2 peaks

(b) Mean of 𝐷_𝑖𝑎 obtained the search results of the 7 landscapes containing 3 peaks

(c) Mean of 𝐷_𝑖𝑎 obtained from the search results of the 5 landscapes containing 4 peaks