Space-efficient path-reporting approximate distance oracles

Research output: Contribution to journalJournal articleResearchpeer-review

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.

Original languageEnglish
JournalTheoretical Computer Science
Volume651
Pages (from-to)1-10
Number of pages10
ISSN0304-3975
DOIs
Publication statusPublished - 2016

    Research areas

  • Distance oracles, Labeling scheme, Routing

ID: 168286103