Abstract
Immune Algorithm is the method based on immune response, keeping diversity. But, original immune response is overly complicated. There is something to imitate the system. Then IA is put on the review by seeing about original immune response. In this paper, it's primarily intended to the improved IA in the light of convergence. This method is similar to genetic algorithm. In other hands, the parameters are more complicated and the number is more than the genetic algorithm. This method is applied to maximum value searching problem, and the validity is checked.