Line Search for an Oblivious Moving Target

  • Jared Coleman
  • , Evangelos Kranakis
  • , Danny Krizanc
  • , Oscar Morales-Ponce

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Consider search on an infinite line involving an autonomous robot starting at the origin of the line and an oblivious moving target at initial distance $d \geq 1$ from it. The robot can change direction and move anywhere on the line with constant maximum speed $1$ while the target is also moving on the line with constant speed $v>0$ but is unable to change its speed or direction. The goal is for the robot to catch up to the target in as little time as possible. The classic case where $v=0$ and the target's initial distance $d$ is unknown to the robot is the well-studied ``cow-path problem''. Alpert and Gal gave an optimal algorithm for the case where a target with unknown initial distance $d$ is moving away from the robot with a known speed $v
Original languageEnglish
Title of host publication26th International Conference on Principles of Distributed Systems, OPODIS 2022
EditorsEshcar Hillel, Roberto Palmieri, Etienne Riviere
PublisherSchloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing
ISBN (Electronic)9783959772655
DOIs
StatePublished - Feb 1 2023
Externally publishedYes
Event26th International Conference on Principles of Distributed Systems, OPODIS 2022 - Brussels, Belgium
Duration: Dec 13 2022Dec 15 2022

Publication series

NameLeibniz International Proceedings in Informatics, LIPIcs
Volume253
ISSN (Print)1868-8969

Conference

Conference26th International Conference on Principles of Distributed Systems, OPODIS 2022
Country/TerritoryBelgium
CityBrussels
Period12/13/2212/15/22

ASJC Scopus Subject Areas

  • Software

Keywords

  • Infinite Line
  • Knowledge
  • Oblivious
  • Robot
  • Search
  • Search-Time
  • Speed
  • Target

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