A Labeling Approach to Incremental Cycle Detection
A Labeling Approach to Incremental Cycle Detection
复制标题
增量循环检测的标记方法
DOI:
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发表时间:
2013
期刊:
影响因子:
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通讯作者:
L. Roditty
中科院分区:
文献类型:
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作者:
E. Cohen;A. Fiat;Haim Kaplan;L. Roditty
In the emph{incremental cycle detection} problem arcs are added to a directed acyclic graph and the algorithm has to report if the new arc closes a cycle. One seeks to minimize the total time to process the entire sequence of arc insertions, or until a cycle appears.
In a recent breakthrough, Bender, Fineman, Gilbert and Tarjan cite{BeFiGiTa11} presented two different algorithms, with time complexity $O(n^2 log n)$ and $O(m cdot min {m^{1/2}, n^{2/3} })$, respectively.
In this paper we introduce a new technique for incremental cycle detection that allows us to obtain both bounds (up to a logarithmic factor). Furthermore, our approach seems more amiable for distributed implementation.