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Cited by 294

The DOI matches its Crossref record; 20 of the 20 references it cites were found in a registry or an index.

Improved fast replanning for robot navigation in unknown terrain

Koenig, S., Likhachev, M.·2003·Proceedings 2002 IEEE International Conference on Robotics and Automation (Cat. No.02CH37292)

Abstract

Mobile robots often operate in domains that are only incompletely known, for example, when they have to move from given start coordinates to given goal coordinates in unknown terrain. In this case, they need to be able to replan quickly as their knowledge of the terrain changes. Stentz' Focussed Dynamic A* is a heuristic search method that repeatedly determines a shortest path from the current robot coordinates to the goal coordinates while the robot moves along the path. It is able to replan one to two orders of magnitudes faster than planning from scratch since it modifies previous search results locally. Consequently, it has been extensively used in mobile robotics. In this paper, we introduce an alternative to Focussed Dynamic A* that implements the same navigation strategy but is algorithmically different. Focussed Dynamic A* Lite is simpler, easier to understand, easier to analyze and easier to extend than Focussed Dynamic A*, yet is more efficient. We believe that our results will make D*-like replanning algorithms even more popular and enable robotics researchers to adapt them to additional applications.

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Metadata

Authors
Koenig, S., & Likhachev, M.
Venue
Proceedings 2002 IEEE International Conference on Robotics and Automation (Cat. No.02CH37292)
Publisher
IEEE
Published
2003-06-25
Volume
1
Pages
968-975
ISSN
1050-4729 (ISSN-L)
OpenAlex
W2158137377
Cited by
294
References
20
FWCI
10.12
Type
conference paper
Language
en
Open access
closed

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CoChat. (2026). Citation check: Improved fast replanning for robot navigation in unknown terrain. https://app.cochat.ai/papers/10.1109/robot.2002.1013481
The paper
Koenig, S., & Likhachev, M. (2003). Improved fast replanning for robot navigation in unknown terrain. Proceedings 2002 IEEE International Conference on Robotics and Automation (Cat. No.02CH37292). https://doi.org/10.1109/robot.2002.1013481

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