Maintaining a large matching and a small vertex cover

Maintaining a large matching and a small vertex cover
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维持大匹配和小顶点覆盖

DOI:
10.1145/1806689.1806753
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发表时间:
2010
期刊:
Random Struct. Algorithms
影响因子:
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通讯作者:
R. Rubinfeld
R. Rubinfeld
中科院分区:
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文献类型:
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作者:
Krzysztof Onak;R. Rubinfeld

文献摘要

被引文献

相似文献

我们考虑在动态变化的图中维护较大匹配和小顶点盖的问题。图表的每个更新都是边删除或边缘插入。我们给出了第一个随机数据结构,该数据结构同时达到了恒定的近似因子,并处理k*polylog(n)时间中的k更新序列,其中n是图中的顶点的数量。以前的数据结构需要每次更新多项式计算。
We consider the problem of maintaining a large matching and a small vertex cover in a dynamically changing graph. Each update to the graph is either an edge deletion or an edge insertion. We give the first randomized data structure that simultaneously achieves a constant approximation factor and handles a sequence of K updates in K*polylog(n) time, where n is the number of vertices in the graph. Previous data structures require a polynomial amount of computation per update.