Approximate Shortest Paths Avoiding a Failed Vertex: Near Optimal Data Structures for Undirected Unweighted Graphs

被引:0
作者
Surender Baswana
Neelesh Khanna
机构
[1] IIT Kanpur,Department of Computer Science and Engineering
[2] Oracle India Pvt. Ltd.,undefined
来源
Algorithmica | 2013年 / 66卷
关键词
Shortest path; Distance; Approximate distance; Oracle;
D O I
暂无
中图分类号
学科分类号
摘要
Let G=(V,E) be an undirected unweighted graph. A path between any two vertices u,v∈V is said to be t-approximate shortest path if its length is at most t times the length of the shortest path between u and v. We address the problem of building a compact data structure which can efficiently answer the following query for any u,v,x∈V and t>1: Reportt-approximate shortest path betweenuandvwhen vertexxfails.
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页码:18 / 50
页数:32
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