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Speeding up moving-target search

Published: 14 May 2007 Publication History
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  • Abstract

    In this paper, we study moving-target search, where an agent (= hunter) has to catch a moving target (= prey). The agent does not necessarily know the terrain initially but can observe it within a certain sensor range around itself. It uses the strategy to always move on a shortest presumed unblocked path toward the target, which is a reasonable strategy for computer-controlled characters in video games. We study how the agent can find such paths faster by exploiting the fact that it performs A* searches repeatedly. To this end, we extend Adaptive A*, an incremental heuristic search method, to moving-target search and demonstrate experimentally that the resulting MT-Adaptive A* is faster than isolated A* searches and, in many situations, also D* Lite, a state-of-the-art incremental heuristic search method. In particular, it is faster than D* Lite by about one order of magnitude for moving-target search in known and initially unknown mazes if both search methods use the same informed heuristics.

    References

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    Cited By

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    • (2022)A Strategy-Based Algorithm for Moving Targets in an Environment with Multiple AgentsSN Computer Science10.1007/s42979-022-01302-x3:6Online publication date: 9-Aug-2022
    • (2021)Energy Conserving Path when Chasing an Intruder by Autonomous Guards2021 IEEE International Conference on Mechatronics and Automation (ICMA)10.1109/ICMA52036.2021.9512628(152-157)Online publication date: 8-Aug-2021
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    Published In

    cover image ACM Other conferences
    AAMAS '07: Proceedings of the 6th international joint conference on Autonomous agents and multiagent systems
    May 2007
    1585 pages
    ISBN:9788190426275
    DOI:10.1145/1329125
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Publication History

    Published: 14 May 2007

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    Author Tags

    1. D* lite
    2. MT-adaptive A*
    3. hunter
    4. incremental heuristic search
    5. moving-target search
    6. planning with the freespace assumption
    7. target
    8. unknown terrain
    9. video games

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    Overall Acceptance Rate 1,155 of 5,036 submissions, 23%

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    View all
    • (2023)Chasing an intruder with limited informationInternational Journal of Intelligent Robotics and Applications10.1007/s41315-023-00286-y7:4(652-670)Online publication date: 22-Aug-2023
    • (2022)A Strategy-Based Algorithm for Moving Targets in an Environment with Multiple AgentsSN Computer Science10.1007/s42979-022-01302-x3:6Online publication date: 9-Aug-2022
    • (2021)Energy Conserving Path when Chasing an Intruder by Autonomous Guards2021 IEEE International Conference on Mechatronics and Automation (ICMA)10.1109/ICMA52036.2021.9512628(152-157)Online publication date: 8-Aug-2021
    • (2021)Heuristic search for one-to-many shortest path queriesAnnals of Mathematics and Artificial Intelligence10.1007/s10472-021-09775-xOnline publication date: 17-Nov-2021
    • (2021)A Strategic Search Algorithm in Multi-agent and Multiple Target EnvironmentRiTA 202010.1007/978-981-16-4803-8_21(195-204)Online publication date: 5-Aug-2021
    • (2021)Multi-Agent Path Planning Approach Using Assignment Strategy Variations in Pursuit of Moving TargetsAgents and Multi-Agent Systems: Technologies and Applications 202110.1007/978-981-16-2994-5_38(451-463)Online publication date: 8-Jun-2021
    • (2020)Catching a Robot Intruder with Limited Information2020 Fourth IEEE International Conference on Robotic Computing (IRC)10.1109/IRC.2020.00010(17-23)Online publication date: Nov-2020
    • (2020)Receding Horizon Optimization Method for Solving the Cops and Robbers Problems in a Complex Environment with ObstaclesJournal of Intelligent & Robotic Systems10.1007/s10846-020-01188-yOnline publication date: 17-Jul-2020
    • (2018)Pursuit-Evasion: Multiple Pursuer Pursue Multiple Evader Using WaveFront and Hungarian MethodProceedings of the International Conference on Computing and Communication Systems10.1007/978-981-10-6890-4_46(473-488)Online publication date: 30-Mar-2018
    • (2017)A scalable approach to chasing multiple moving targets with multiple agentsProceedings of the 26th International Joint Conference on Artificial Intelligence10.5555/3171837.3171911(4470-4476)Online publication date: 19-Aug-2017
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