Approximate Distance Oracles with Improved Bounds

Approximate Distance Oracles with Improved Bounds
复制标题

具有改进边界的近似距离预言机

DOI:
--
复制
发表时间:
2015
期刊:
Symposium on the Theory of Computing
影响因子:
--
通讯作者:
S. Chechik
S. Chechik
中科院分区:
--
文献类型:
--
作者:
S. Chechik

文献摘要

被引文献

相似文献

距离oracle是一种紧凑的数据结构,能够快速估计给定图中的距离。本文给出了一般无向加权图中距离预言的一种新构造。对于任意整数k,我们的数据结构需要O(n1+1/k)空间,保证2k-1的延伸,并且在O(1)时间内回答任何查询。
A distance oracle is a compact data structure capable of quickly estimating distances in a given graph. In this paper we provide a new construction for distance oracles in general undirected weighted graphs. Our data structure, for any integer k, requires O( n1+1/k) space, guarantees a stretch of 2k-1, and answers any query in only O(1) time.