Competing species dynamics: Qualitative advantage versus geography
Competing species dynamics: Qualitative advantage versus geography
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DOI：
10.1007/s100510050410
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发表时间：
1998-08-01
影响因子：
1.6
通讯作者：
Droz, M
中科院分区：
文献类型：
--
作者：
Galam, S;Chopard, B;Droz, M
提出了一个简单的元胞自动机模型，用于两群争夺同一“领土”的战争。结果表明，仅有质量优势不足以让少数人获胜。空间组织以及一定程度的进攻性有助于克服不太适合的多数。该模型适用于一大批相互竞争的群体：吸烟者与非吸烟者之间的战争、流行病传播、舆论形成、行业标准竞争和物种进化。在最后一种情况下，它为断断续续的均衡提供了新的解释。
A simple cellular automata model for a two-group war over the same "territory" is presented. It is shown that a qualitative advantage is not enough for a minority to win. A spatial organization as well a definite degree of aggressiveness are instrumental to overcome a less fitted majority. The model applies to a large spectrum of competing groups: smoker-non smoker war, epidemic spreading, opinion formation, competition for industrial standards and species evolution. In the last case, it provides a new explanation for punctuated equilibria.