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arXiv 2109.02564math.PRphysics.soc-ph
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随机树上的随机谣言

Stochastic rumors on random trees

Valdivino V. Junior, Pablo M. Rodriguez, Adalto Speroto

摘要:

Maki-Thompson谣言模型的定义是假设一个由图表示的种群被细分为三类个体,即扩散者、扩散者和抑制者。传播者以1的速率将谣言告诉它最近的无知邻居。以相同的速率,一个吊具在与其他最近的吊具或加劲板接触后变成加劲板。在这项工作中,我们研究了随机树模型。通常我们定义模型的一个临界参数为临界值,在这个值附近谣言要么几乎必然灭绝,要么以正概率生存。我们分析了存在的相变的生存的谣言,我们得到的平均范围的谣言的估计。我们的结果的适用性示出了一些著名的离散分布产生的随机树的例子。

英文摘要:

The Maki-Thompson rumor model is defined by assuming that a population represented by a graph is subdivided into three classes of individuals; namely, ignorants, spreaders and stiflers. A spreader tells the rumor to any of its nearest ignorant neighbors at rate one. At the same rate, a spreader becomes a stifler after a contact with other nearest neighbor spreaders, or stiflers. In this work we study the model on random trees. As usual we define a critical parameter of the model as the critical value around which the rumor either becomes extinct almost-surely or survives with positive probability. We analyze the existence of phase-transition regarding the survival of the rumor, and we obtain estimates for the mean range of the rumor. The applicability of our results is illustrated with examples on random trees generated from some well-known discrete distributions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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