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The Legion System: A Novel Approach to Evolving Heterogeneity for Collective Problem Solving

European Conference on Genetic Programming, , 16-28, 2000


Status: Published

Citations:

Cite: [bibtex]


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Abstract: We investigate the dynamics of agent groups evolved to perform a collective task, and in which the behavioural heterogeneity of the group is under evolutionary control. Two task domains are studied: solutions are evolved for the two tasks using an evolutionary algorithm called the Legion system. A new metric of heterogeneity is also introduced, which measures the heterogeneity of any evolved group behaviour. It was found that the amount of heterogeneity evolved in an agent group is dependent of the given problem domain: for the first task, the Legion system evolved heterogenous groups; for the second task, primarily homogenous groups evolved. We conclude that the proposed system, in conjunction with the introduced heterogeneity measure, can be used as a tool for investigating various issues concerning redundancy, robustness and division of labour in the context of evolutionary approaches to collective problem solving.


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