arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.14192math.COcs.DM
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无$K_4$桥图的距离标号方案

Distance labeling schemes for $K_4$-free bridged graphs

Victor Chepoi, Arnaud Labourel, Sébastien Ratel

摘要:

$k$ -近似距离标记方案是用短标记标记图的顶点的方案,其方式为任何两个顶点$u$和$v$之间的距离的$k$ -近似可以仅通过检查$u$和$v$的标记而有效地确定,而不使用任何其他信息。其中一个重要的问题是找到自然类的图承认确切或近似的距离标签计划的标签的多对数的大小。本文给出了一类无$K_4$桥图的$4$ -近似距离标号方案.该方案使用允许恒定解码时间的多对数长度$O(\log n^3)$的标签。给定两个顶点$u$和$v$的标签,解码函数返回精确距离$d_G(u,v)$和它的四元组$4d_G(u,v)$之间的值。

英文摘要:

$k$-Approximate distance labeling schemes are schemes that label the vertices of a graph with short labels in such a way that the $k$-approximation of the distance between any two vertices $u$ and $v$ can be determined efficiently by merely inspecting the labels of $u$ and $v$, without using any other information. One of the important problems is finding natural classes of graphs admitting exact or approximate distance labeling schemes with labels of polylogarithmic size. In this paper, we describe a $4$-approximate distance labeling scheme forthe class of $K_4$-free bridged graphs. This scheme uses labels of poly-logarithmic length $O(\log n^3)$ allowing a constant decoding time. Given the labels of two vertices $u$ and $v$, the decoding function returnsa value between the exact distance $d_G(u,v)$ and its quadruple $4d_G(u,v)$.

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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