Space-efficient path-reporting approximate distance oracles

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

We consider approximate path-reporting distance oracles, distance labeling and labeled routing with extremely low space requirements, for general undirected graphs. For distance oracles, we show how to break the nlog⁡n space bound of Thorup and Zwick if approximate paths rather than distances need to be reported. For approximate distance labeling and labeled routing, we break the previously best known space bound of O(log⁡n) words per vertex. The cost for such space efficiency is an increased stretch.

OriginalsprogEngelsk
TidsskriftTheoretical Computer Science
Vol/bind651
Sider (fra-til)1-10
Antal sider10
ISSN0304-3975
DOI
StatusUdgivet - 2016

ID: 168286103