Do artificial ants march in step? ordered asynchronous processes and modularity in biological systems

Authors:
David Cornforth;David G. Green;David Newth;Michael Kirley
Affiliations:
School of Environmental and Information Sciences, Charles Sturt University, Albury, Australia;School of Environmental and Information Sciences, Charles Sturt University, Albury, Australia;School of Environmental and Information Sciences, Charles Sturt University, Albury, Australia;School of Environmental and Information Sciences, Charles Sturt University, Albury, Australia
Venue:
ICAL 2003 Proceedings of the eighth international conference on Artificial life
Year:
2002

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Abstract

Processes that occur in many biological systems are not synchronous, but are governed by asynchronous updating. Although some previous models of multi agent systems have incorporated asynchronous updating in an informal or implicit way, the importance of asynchronous behaviour has been largely overlooked. However, the update scheme chosen is very important in determining the overall system behaviour. We illustrate this point using several updating schemes in simple models. The implication is that care should be given to selecting an update scheme that is appropriate for the modelling application. We also observe that certain ordered asynchronous processes play a role in emergent modularity: an important process in the evolution of complexity in living systems.