Simple and Local Independent Set Approximation
Simple and Local Independent Set Approximation
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简单局部独立集逼近
DOI:
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发表时间:
2018
期刊:
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通讯作者:
Dror Rawitz
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文献类型:
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作者:
R. Boppana;M. Halldórsson;Dror Rawitz
We bound the performance guarantees that follow from Tur'an-like bounds for unweighted and weighted independent sets in bounded-degree graphs. In particular, a randomized approach of Boppana forms a simple 1-round distributed algorithm, as well as a streaming and preemptive online algorithm. We show it gives a tight $(Delta+1)/2$-approximation in unweighted graphs of maximum degree $Delta$, which is best possible for 1-round distributed algorithms. For weighted graphs, it gives only a $Delta$-approximation, but a simple modification results in an asymptotic expected $0.529 Delta$-approximation. This compares with a recent, more complex $Delta$-approximation~cite{BCGS17}, which holds deterministically.
DOI:
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发表时间:
2017-02
期刊:
ArXiv
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作者:
Graham Cormode;J. Dark;C. Konrad
通讯作者:
Graham Cormode;J. Dark;C. Konrad