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arXiv 1408.2071cs.DC
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拥塞团上的近常数时间分布式算法

Near-Constant-Time Distributed Algorithms on a Congested Clique

James W. Hegeman, Sriram V. Pemmaraju, Vivek B. Sardeshmukh

摘要:

本文针对拥挤团模型中的各种问题提出了常时间和近常时间分布式算法。我们展示了如何计算一个3-规则集在预期的$O(\log \log \log n)$轮,并使用此,我们得到一个常数近似度量设施的位置,也在预期的$O(\log \log \log n)$轮。此外,假设输入度量空间的常数倍维,我们得到常数轮算法计算常数因子近似的最小生成树和度量设施选址问题。这些结果显着改善的运行时间最快的已知算法,这些问题在拥挤的集团设置。

英文摘要:

This paper presents constant-time and near-constant-time distributed algorithms for a variety of problems in the congested clique model. We show how to compute a 3-ruling set in expected $O(\log \log \log n)$ rounds and using this, we obtain a constant-approximation to metric facility location, also in expected $O(\log \log \log n)$ rounds. In addition, assuming an input metric space of constant doubling dimension, we obtain constant-round algorithms to compute constant-factor approximations to the minimum spanning tree and the metric facility location problems. These results significantly improve on the running time of the fastest known algorithms for these problems in the congested clique setting.

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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