Partially Optimal Edge Fault-Tolerant Spanners

Partially Optimal Edge Fault-Tolerant Spanners
复制标题

部分最优边缘容错扳手

DOI:
10.1137/1.9781611977073.129
复制
发表时间:
2022
期刊:
Proceedings of the Annual ACMSIAM Symposium on Discrete Algorithms
影响因子:
--
通讯作者:
Robelle, Caleb
Robelle, Caleb
中科院分区:
--
文献类型:
--
作者:
Bodwin, Greg;Dinitz, Michael;Robelle, Caleb

文献摘要

参考文献

被引文献

相似文献

最近的工作已经证明,对于每个正整数k,每个n-结点图都有一个具有O(f1-1/kn 1 +1/k)条边的(2k-1)-图是边故障或顶点故障的弹性图.对于顶点断层,此界是紧的。然而,fedefaults的情况并没有得到很好的理解:最著名的广义alkis的下界。我们的主要结果是接近这个差距与改进的上限,从而分离的情况下,边缘和顶点故障。对于oddk,我们的新上限是,它紧到隐藏的poly(k)因子。对于evenk,我们的新上界是Ok(f1/2n 1 + 1/k+fn),这留下了poly(k)f1/(2k)的缺口。我们的证明是一个分析的容错贪婪算法,这需要指数时间,但我们也表明,有一个多项式时间的算法,创建边缘容错spectrum,仅由k的因素更大。
Recent work has established that, for every positive integerk, everyn-node graph has a (2k–1)-spanner withO(f1–1/kn1+1/k) edges that is resilient tofedge or vertex faults. Forvertexfaults, this bound is tight. However, the case ofedgefaults is not as well understood: the best known lower bound for generalkis . Our main result is to nearly close this gap with an improved upper bound, thus separating the cases of edge and vertex faults. For oddk, our new upper bound is , which is tight up to hidden poly(k) factors. For evenk, our new upper bound isOk(f1/2n1 + 1/k+fn), which leaves a gap of poly(k)f1/(2k). Our proof is an analysis of the fault-tolerant greedy algorithm, which requires exponential time, but we also show that there is a polynomial-time algorithm which creates edge fault tolerant spanners that are larger only by factors ofk.
最佳顶点容错扳手(用于固定拉伸)
DOI: --
发表时间: 2017
期刊: ACM-SIAM Symposium on Discrete Algorithms
影响因子: --
作者:
Gregory Bodwin;M. Dinitz;M. Parter;V. V. Williams
通讯作者: V. V. Williams
具有多对数开销的网络同步
DOI: --
发表时间: 1990
期刊: Proceedings [1990] 31st Annual Symposium on Foundations of Computer Science
影响因子: --
作者:
B. Awerbuch;D. Peleg
通讯作者: D. Peleg
顶点容错 Spanner 的一个简单但最佳的解决方案
DOI: --
发表时间: 2018
期刊: ACM SIGACT-SIGOPS Symposium on Principles of Distributed Computing
影响因子: --
作者:
Gregory Bodwin;Shyamal Patel
通讯作者: Shyamal Patel
DOI: --
发表时间: 1998
期刊: Symposium on the Theory of Computing
影响因子: --
作者:
C. Levcopoulos;G. Narasimhan;M. Smid
通讯作者: M. Smid
多项式时间内最优顶点容错扳手
DOI: 10.1137/1.9781611976465.174
发表时间: 2021
期刊: Proceedings of the 2021 ACM-SIAM Symposium on Discrete Algorithms (SODA
影响因子: --
作者:
Bodwin, Greg;Dinitz, Michael;Robelle, Caleb
通讯作者: Robelle, Caleb