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arXiv 1802.06478cs.DS
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最小独立支配集问题的一种有效局部搜索

An Efficient Local Search for the Minimum Independent Dominating Set Problem

Kazuya Haraguchi

摘要:

在本文中,我们提出了一个有效的局部搜索的最小独立支配集问题。我们考虑使用$k$ -swap作为邻域操作的局部搜索。给定一个可行解$S$,它是通过从$S$中精确地删除$k$顶点,然后向其添加任意数量的顶点来获得另一个可行解的操作。我们证明了,当$k=2$,(分别为,$k=3$和给定的解决方案是最小的关于2-交换),我们可以找到一个改进的解决方案在附近或得出结论,没有这样的解决方案存在于$O(nΔ)$(分别,$O(nΔ^3)$)时间,其中$n$表示顶点的数量,$Δ$表示最大度数。我们开发了一个元启发式算法,重复建议的本地搜索和高原搜索迭代,高原搜索检查的解决方案相同的大小作为当前的解决方案,可通过交换的解决方案顶点和非解决方案顶点。该算法是如此有效,在80个DIMACS图,它更新了最知名的解决方案的大小为5个图和执行以及现有的方法,其余的图。

英文摘要:

In the present paper, we propose an efficient local search for the minimum independent dominating set problem. We consider a local search that uses $k$-swap as the neighborhood operation. Given a feasible solution $S$, it is the operation of obtaining another feasible solution by dropping exactly $k$ vertices from $S$ and then by adding any number of vertices to it. We show that, when $k=2$, (resp., $k=3$ and a given solution is minimal with respect to 2-swap), we can find an improved solution in the neighborhood or conclude that no such solution exists in $O(nΔ)$ (resp., $O(nΔ^3)$) time, where $n$ denotes the number of vertices and $Δ$ denotes the maximum degree. We develop a metaheuristic algorithm that repeats the proposed local search and the plateau search iteratively, where the plateau search examines solutions of the same size as the current solution that are obtainable by exchanging a solution vertex and a non-solution vertex. The algorithm is so effective that, among 80 DIMACS graphs, it updates the best-known solution size for five graphs and performs as well as existing methods for the remaining graphs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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