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首页> 外文期刊>Physica, A. Statistical mechanics and its applications >Evolution of the linguistic diversity on correlated landscapes
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Evolution of the linguistic diversity on correlated landscapes

机译：相关景观上语言多样性的演变

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摘要

We have recently investigated the evolution of linguistic diversity by means of a simple spatial model that considers selective geographic colonization, linguistic anomalous diffusion and mutation. In the model, regions of the lattice are characterized by the amount of resources available to populations which are going to colonize the region. in that approach, the resources were ascribed in a randomly and uncorrelated way. Here, we extend the previous model and introduce a degree of correlation for the resource landscape. A change of the qualitative scenario is observed for high correlation, where the increase of the linguistic diversity on area is faster than for low correlated landscapes. For low correlated landscapes, the dependence of diversity on area shows two scaling regimes, while we observe the rising of another scaling region for high correlated landscapes. (C) 2008 Elsevier B.V. All rights reserved.
机译：我们最近通过一个简单的空间模型研究了语言多样性的演变，该模型考虑了选择性地理殖民化，语言异常扩散和变异。在该模型中，点阵区域的特征在于将要殖民该区域的人群可利用的资源量。在这种方法中，资源是以随机且不相关的方式分配的。在这里，我们扩展了先前的模型，并介绍了资源格局的相关程度。对于高相关性，观察到定性情景的变化，其中区域语言多样性的增加比低相关性景观的增加快。对于低相关性景观，多样性对面积的依赖性显示出两种缩放方式，而对于高相关性景观，我们观察到另一个缩放区域的上升。 （C）2008 Elsevier B.V.保留所有权利。

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