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Searching for a Soulmate – Searching for Tag-Similar Partners Evolves and Supports Specialization in Groups

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Regulated Agent-Based Social Systems (RASTA 2002)

Part of the book series: Lecture Notes in Computer Science ((LNAI,volume 2934))

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Abstract

In a previous paper [1] we presented simulation results that demonstrated the evolution of “tag based” groups composed of cooperative (in-group altruistic) individual agents performing specialised functions. We showed how “teams” of individual maximisers (who copy the behaviours of those who outperform them) come to form internally specialised and cooperative groups that efficiently exploit their environment. We have also demonstrated [1, 2, 3] that the efficiency of the specialisation process is highly dependent on the “searching strategy” employed by agents to locate in-group members with required skills. Specifically we showed that populations of agents with “smart” searching strategies outperformed populations of “dumb” (random) search strategies – even when the costs of smart searching were much higher. We hypothesised that in mixed populations smart strategies would out-evolve dumb ones. In this paper we test this hypothesis. Our results show that smart strategies do indeed outperform dumb strategies for significant periods of time but that dumb strategies persist also. The time series of individual runs show cycles of smart and dumb strategies in the population over generations. We argue that the study of such phenomena offers a possible minimal way towards understanding the evolution of institutional roles and internal specialisation – without positing actions that originate at the supra-individual level (though we do not discount such actions).

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Hales, D. (2004). Searching for a Soulmate – Searching for Tag-Similar Partners Evolves and Supports Specialization in Groups. In: Lindemann, G., Moldt, D., Paolucci, M. (eds) Regulated Agent-Based Social Systems. RASTA 2002. Lecture Notes in Computer Science(), vol 2934. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-25867-4_14

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  • DOI: https://doi.org/10.1007/978-3-540-25867-4_14

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-20923-2

  • Online ISBN: 978-3-540-25867-4

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