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Complex Evolutionary Pathways in Interacting Linguistic Communities

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Advances in Computational Social Science

Part of the book series: Agent-Based Social Systems ((ABSS,volume 11))

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Abstract

We experiment with a linguistic change mechanism in a community of interacting agents and show the various phenomena that may emerge under different social constraints. We assume phonological and lexical learning and a semantic reference to external objects in the environment. Distinct groups of agents with initially different languages converge to a common language, with the relevant frequency of inter-agent interactions controlling which language dominates. Moreover, an initially monolingual community diverges due to social factors creating agent grouping, where agents interact more frequently with members of the same group. Additional cognitive features, like innovation and attention , lead to increased linguistic divergence between groups and word bistability. Finally, cultural learning leads to continuous linguistic change and occasional coexistence of multiple words, as well as revival of rare words. Overall, it appears that the initial community may evolve in arbitrary directions, and languages may dynamically form, split , mutate, and oscillate.

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Notes

  1. 1.

    Mutations are introduced when the PhonoStrength of the perceived word is lower than PThresh, see Table 14.3.

  2. 2.

    The actual time (number of steps) it takes for a simulation to stabilize depends on the initial languages and the interaction frequency.

  3. 3.

    Which is above pThresh = 0.6.

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Correspondence to Elpida Tzafestas .

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Vagias, I., Tzafestas, E. (2014). Complex Evolutionary Pathways in Interacting Linguistic Communities. In: Chen, SH., Terano, T., Yamamoto, R., Tai, CC. (eds) Advances in Computational Social Science. Agent-Based Social Systems, vol 11. Springer, Tokyo. https://doi.org/10.1007/978-4-431-54847-8_14

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