Sciweavers

7 search results - page 2 / 2
» Approximate Shortest Paths Avoiding a Failed Vertex: Optimal...
Sort
View
ATMOS
2007
13 years 6 months ago
Maintenance of Multi-level Overlay Graphs for Timetable Queries
In railways systems the timetable is typically represented as a weighted digraph on which itinerary queries are answered by shortest path algorithms, usually running Dijkstra’s a...
Francesco Bruera, Serafino Cicerone, Gianlorenzo D...
FOCS
2009
IEEE
13 years 12 months ago
Distance Oracles for Sparse Graphs
Abstract— Thorup and Zwick, in their seminal work, introduced the approximate distance oracle, which is a data structure that answers distance queries in a graph. For any integer...
Christian Sommer 0002, Elad Verbin, Wei Yu