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Bounded fitness landscapes and the evolution of the linguistic diversity

机译:有限的健身景观和语言多样性的演变

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摘要

We have recently introduced a simple spatial computer simulation model to study the evolution of the linguistic diversity. The model considers processes of selective geographic colonization, linguistic anomalous diffusion and mutation. In the approach, we ascribe to each language a fitness function which depends on the number of people that speak that language. Here, we extend the aforementioned model to examine the role of saturation of the fitness on the language dynamics. We found that the dependence of the linguistic diversity on the area after colonization displays a power law regime with a nontrivial exponent in very good agreement with the measured exponent associated with the actual distribution of languages on the Earth. (c) 2006 Elsevier B.V. All rights reserved.
机译:最近,我们引入了一个简单的空间计算机仿真模型来研究语言多样性的演变。该模型考虑了选择性地理殖民化,语言异常扩散和变异的过程。在这种方法中,我们为每种语言赋予适应性功能,该功能取决于说该语言的人数。在这里,我们扩展了前述模型,以检验适应性饱和度对语言动力学的作用。我们发现,殖民化后语言多样性对区域的依赖性显示出幂律体制,其幂函数指数与地球上语言的实际分布相关的实测指数非常吻合。 (c)2006 Elsevier B.V.保留所有权利。

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