Brief Announcement: Simple and Local Independent Set Approximation.
PODC '18: ACM Symposium on Principles of Distributed Computing Egham United Kingdom July, 2018(2018)
摘要
We bound the performance guarantees that follow from Turán-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 (Δ+1)/2-approximation in unweighted graphs of maximum degree Δ, which is best possible for 1-round distributed algorithms. For weighted graphs, it gives only a (Δ+1)-approximation, but a simple modification results in an asymptotic expected 0.529(Δ+1)-approximation.
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关键词
independent set, Turan bound, approximation algorithm, distributed algorithm
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