Almost optimal distance oracles for planar graphs

Panagiotis Charalampopoulos, Paweł Gawrychowski, Shay Mozes, Oren Weimann

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We present new tradeoffs between space and query-time for exact distance oracles in directed weighted planar graphs. These tradeoffs are almost optimal in the sense that they are within polylogarithmic, subpolynomial or arbitrarily small polynomial factors from the naïve linear space, constant query-time lower bound. These tradeoffs include: (i) an oracle with space O(n1+ϵ) and query-time Õ(1) for any constant ϵ > 0, (ii) an oracle with space Õ(n) and query-time O(nϵ) for any constant ϵ > 0, and (iii) an oracle with space n1+o(1) and query-time no(1).

Original languageAmerican English
Title of host publicationSTOC 2019 - Proceedings of the 51st Annual ACM SIGACT Symposium on Theory of Computing
EditorsMoses Charikar, Edith Cohen
PublisherAssociation for Computing Machinery
Pages138-151
Number of pages14
ISBN (Electronic)9781450367059
DOIs
StatePublished - 23 Jun 2019
Event51st Annual ACM SIGACT Symposium on Theory of Computing, STOC 2019 - Phoenix, United States
Duration: 23 Jun 201926 Jun 2019

Publication series

NameProceedings of the Annual ACM Symposium on Theory of Computing

Conference

Conference51st Annual ACM SIGACT Symposium on Theory of Computing, STOC 2019
Country/TerritoryUnited States
CityPhoenix
Period23/06/1926/06/19

Keywords

  • Distance oracles
  • Planar graphs
  • Shortest paths
  • Voronoi diagrams

All Science Journal Classification (ASJC) codes

  • Software

Fingerprint

Dive into the research topics of 'Almost optimal distance oracles for planar graphs'. Together they form a unique fingerprint.

Cite this