Modified evolution strategies with a diversity-based parent-inclusion scheme

There are two major variants of evolution strategies: the (mu, lambda) evolution strategy and the (mu + lambda) evolution strategy. In a survey paper [1], it is suggested that preference of either strategy is most likely problem-dependent, and that both strategies are special cases of the general (mu, kappa, lambda) evolution strategy, where kappa denotes the maximum life span of an individual. Ln this paper, a diversity-based fuzzy parent-inclusion scheme is devised to make compromises between both strategies and thus retain advantages from each. Simulation results provided do manifest the virtue of this modified evolution strategy.