(a) Mean of obtained from the search results of the 11 landscapes containing 2 peaks
(b) Mean of obtained the search results of the 7 landscapes containing 3 peaks
(c) Mean of obtained from the search results of the 5 landscapes containing 4 peaks
Figure 18: Value of 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.