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Artificial Life

Winter 2004, Vol. 10, No. 1, Pages 83-98
(doi: 10.1162/106454604322875922)
© 2004 Massachusetts Institute of Technology
Self-Protection and Diversity in Self-Replicating Cellular Automata
Article PDF (1.38 MB)

The concept of self-protection, a capability of an organism to protect itself from exogenous attacks, is introduced into the design of artificial evolutionary systems as a possible method to create and maintain diversity in the population. Three different mechanisms of self-protection are considered and implemented on a cellular-automaton-based evolutionary system, the evoloop. Simulation results imply a positive effect of those mechanisms on diversity maintenance, especially when the self-protection is moderate so that it conserves both the attacker and the attacked. This letter briefly reports the models and the simulation results obtained using those models.