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首页> 外文期刊>International Journal of Modern Physics, C. Physics and Computers >Effects of mass media and cultural drift in a model for social influence
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Effects of mass media and cultural drift in a model for social influence

机译：社会影响模型中的大众传媒和文化漂移的影响

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摘要

In the context of an extension of Axelrod's model for social influence, we study the interplay and competition between the cultural drift, represented as random perturbations, and mass media, introduced by means of an external homogeneous field. Unlike previous studies [J. C. Gonzdlez-Avella et al., Phys. Rev. E 72, 065102(R) (2005)], the mass media coupling proposed here is capable of affecting the cultural traits of any individual in the society, including those who do not share any features with the external message. A noise-driven transition is found: for large noise rates, both the ordered (culturally polarized) phase and the disordered (culturally fragmented) phase are observed, while, for lower noise rates, the ordered phase prevails. In the former case, the external field is found to induce cultural ordering, a behavior opposite to that reported in previous studies using a different prescription for the mass media interaction. We compare the predictions of this model to statistical data measuring the impact of a mass media vasectomy promotion campaign in Brazil.
机译：在扩展阿克塞尔罗德社会影响模型的背景下，我们研究了由外部同质场引入的文化漂移（以随机扰动表示）与大众传媒之间的相互作用和竞争。与以前的研究不同[J. C.Gonzdlez-Avella等，《物理学报》 Rev. E 72，065102（R）（2005）]，此处提出的大众传播媒介耦合能够影响社会中任何个人的文化特征，包括那些与外部信息没有任何共同特征的人。发现了噪声驱动的过渡：对于较大的噪声速率，观察到有序（文化极化）阶段和无序（在文化上破碎）阶段，而对于较低的噪声速率，则以有序阶段为准。在前一种情况下，发现外部领域会导致文化秩序，这一行为与以前的研究报道的相反，后者使用了与大众传媒互动不同的处方。我们将该模型的预测与统计数据进行了比较，该统计数据测量了在巴西进行的大面积输精管结扎术推广活动的影响。

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