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Artificial Chemistries$
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Wolfgang Banzhaf and Lidia Yamamoto

Print publication date: 2015

Print ISBN-13: 9780262029438

Published to MIT Press Scholarship Online: September 2016

DOI: 10.7551/mitpress/9780262029438.001.0001

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Complexity and Open-Ended Evolution

Complexity and Open-Ended Evolution

(p.159) Chapter 8 Complexity and Open-Ended Evolution
Artificial Chemistries

Wolfgang Banzhaf

Lidia Yamamoto

The MIT Press

Despite tremendous progress in recent years, artificial systems still lag behind their natural counterparts in their ability to bring about unbounded novelty and complexity via evolution. The search for open-ended evolutionary growth of complexity in artificial systems remains a major research topic in artificial life and artificial chemistries, and is the topic of this chapter. Starting with a discussion about the interplay between evolution and self-organization, we then look at how species coevolve in ecologies and examine the delicate balance between robustness and evolvability. The debate around the existence of an “arrow of complexity”, a tendency towards complexity growth in the biosphere, is then summarized, followed by an overview of recent efforts to obtain open-ended evolution in the computer.

Keywords:   Arrow of complexity, Coevolution, Dynamical hierarchy, Evolvability, Modularity, Open-ended evolution, Stochastic corrector model

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