Parallel Shortest Paths with Negative Edge Weights
Parallel Shortest Paths with Negative Edge Weights
复制标题
具有负边权重的并行最短路径
DOI:
10.1145/3490148.3538583
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Russell, Katina
中科院分区:
文献类型:
--
作者:
Cao, Nairen;Fineman, Jeremy T.;Russell, Katina
This paper presents a parallel version of Goldberg's algorithm for the problem of single-source shortest paths with integer (including negatives) edge weights. Given an input graph with n vertices, m edges, and integer weights ≥-N, our algorithms solves the problem with Õ(m √n log N) work and n5/4+o(1) log N span, both with high probability. Our algorithm thus has work similar to Goldberg's algorithm while also achieving at least m1/4-o(1) parallelism. To generate our parallel version of Goldberg's algorithm, we solve two specific distance-limited shortest-path problems, both with work Õ(m) and span √L · n1/2+o(1), where L is the distance limit.
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DOI:
10.1145/3357713.3384270
发表时间:
2020
期刊:
ACM SIGACT Symposium on Theory of Computing
影响因子:
--
作者:
Cao, Nairen;Fineman, Jeremy T.;Russell, Katina
通讯作者:
Russell, Katina
DOI:
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发表时间:
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期刊:
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影响因子:
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发表时间:
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期刊:
J. Algorithms
影响因子:
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DOI:
--
发表时间:
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期刊:
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DOI:
10.1109/focs46700.2020.00090
发表时间:
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期刊:
2020
影响因子:
--
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