Maintaining a large matching and a small vertex cover
Maintaining a large matching and a small vertex cover
复制标题
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:
影响因子:
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通讯作者:
R. Rubinfeld
中科院分区:
文献类型:
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作者:
Krzysztof Onak;R. Rubinfeld
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.