arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1608.01766physics.soc-phcond-mat.dis-nncs.SI
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随机图上的异步谣言传播

Asynchronous Rumor Spreading on Random Graphs

Konstantinos Panagiotou, Leo Speidel

摘要:

我们进行了深入的研究的各种特性的异步推拉协议传播谣言Erdens-Rényi随机图$G_{n,p}$,任何$p>c\ln(n)/n$与$c>1$。特别是,我们提供了一个简单的策略,分析异步推拉协议在任意图形拓扑结构,并将此策略应用到$G_{n,p}$。我们证明了严格的对数阶的总时间,直到信息已经传播到所有节点的界限。令人惊讶的是,异步推拉协议所需的时间几乎不受图的平均度的影响。类似的Erdens-Rényi随机图的紧界以前只在同步推送协议中得到过,其中已经观察到稀疏随机图的总运行时间显着增加。最后,我们量化的鲁棒性的协议相对于传输和节点故障。我们的分析表明,异步协议是特别强大的这些故障相比,他们的同步同行。

英文摘要:

We perform a thorough study of various characteristics of the asynchronous push-pull protocol for spreading a rumor on Erdős-Rényi random graphs $G_{n,p}$, for any $p>c\ln(n)/n$ with $c>1$. In particular, we provide a simple strategy for analyzing the asynchronous push-pull protocol on arbitrary graph topologies and apply this strategy to $G_{n,p}$. We prove tight bounds of logarithmic order for the total time that is needed until the information has spread to all nodes. Surprisingly, the time required by the asynchronous push-pull protocol is asymptotically almost unaffected by the average degree of the graph. Similarly tight bounds for Erdős-Rényi random graphs have previously only been obtained for the synchronous push protocol, where it has been observed that the total running time increases significantly for sparse random graphs. Finally, we quantify the robustness of the protocol with respect to transmission and node failures. Our analysis suggests that the asynchronous protocols are particularly robust with respect to these failures compared to their synchronous counterparts.

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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