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论文类型：期刊论文

发表时间：2012-10-15

发表刊物：PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS

收录刊物：SCIE、EI、Scopus

卷号：391

期号：20

页面范围：4943-4952

ISSN号：0378-4371

关键字：Language competition; Spatial distribution; Mixed language

摘要：We use cellular automata simulation methods to study the competition between two languages (language A and B). We assume each of the two languages consists of F independent features and define an individual as two F-length "identity level" integer strings. The value of each integer of the strings indicates whether the individual is willing or unwilling to express a certain feature and how his willingness or unwillingness is. In our model, individuals who speak either language A or B are randomly placed on a square lattice initially and programmed to evolve under the communication and interaction methods. First, we consider the situation that the competition occurs between two languages with only one feature. We find the differences between short-time coexistence processes and long-time coexistence processes and discuss how the spatial distribution of languages evolves. We observe that periodic line-shaped boundaries take shape in some simulations and lead to long-time coexistence between the two languages. Then we study the multi-feature cases when F = 10 and find the correlation among the evolution of different features decreases with time. We also observe the extinction of two primitive languages and formation of mixed languages. (C) 2012 Elsevier B.V. All rights reserved.