arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1312.7010physics.soc-phcond-mat.stat-mechq-bio.PE
收藏

具有局部确定性动力学的复杂网络上的传染传播

Contagion spreading on complex networks with local deterministic dynamics

Pouya Manshour, Afshin Montakhab

摘要:

通常,传染强度由传输速率$λ$建模,由此网络中的所有节点在平均场近似中被统一处理。然而,当地代理人对同一传染病的反应不同,这是基于他们的当地特点。根据我们最近的工作[EPL \textbf{99},58002(2012)],我们研究了复杂网络上具有局部动力学的传染扩散模型。因此,我们量化传染的质量,$0 \leq α\leq 1$,并遵循他们的传播条件(健身)是由当地代理商进行评估。我们选择各种确定性的局部规则。最初的传播与指数质量依赖的时间尺度,其次是一个稳定的状态与流行程度取决于质量的传染。我们还观察到各种有趣的现象,例如,在没有枢纽参与的情况下,流行率很高。这与一般认为枢纽在典型的传播过程中发挥核心作用的观点形成鲜明对比。我们进一步研究了网络拓扑在各种模型中的作用,发现只要小世界效应存在,底层拓扑对最终定态没有贡献,而只影响初始传播速度。

英文摘要:

Typically, contagion strength is modeled by a transmission rate $λ$, whereby all nodes in a network are treated uniformly in a mean-field approximation. However, local agents react differently to the same contagion based on their local characteristics. Following our recent work [EPL \textbf{99}, 58002 (2012)], we investigate contagion spreading models with local dynamics on complex networks. We therefore quantify contagions by their quality, $0 \leq α\leq 1$, and follow their spreading as their transmission condition (fitness) is evaluated by local agents. We choose various deterministic local rules. Initial spreading with exponential quality-dependent time scales is followed by a stationary state with a prevalence depending on the quality of the contagion. We also observe various interesting phenomena, for example, high prevalence without the participation of the hubs. This is in sharp contrast with the general belief that hubs play a central role in a typical spreading process. We further study the role of network topology in various models and find that as long as small-world effect exists, the underlying topology does not contribute to the final stationary state but only affects the initial spreading velocity.

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。

↑