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Journal article : Review

Formal modelling for multi-robot systems under uncertainty

Abstract:

Purpose of Review

To effectively synthesise and analyse multi-robot behaviour, we require formal task-level models which accurately capture multi-robot execution. In this paper, we review modelling formalisms for multi-robot systems under uncertainty and discuss how they can be used for planning, reinforcement learning, model checking, and simulation.

Recent Findings

Recent work has investigated models which more accurately capture multi-robot execution by considering different forms of uncertainty, such as temporal uncertainty and partial observability, and modelling the effects of robot interactions on action execution. Other strands of work have presented approaches for reducing the size of multi-robot models to admit more efficient solution methods. This can be achieved by decoupling the robots under independence assumptions or reasoning over higher-level macro actions.

Summary

Existing multi-robot models demonstrate a trade-off between accurately capturing robot dependencies and uncertainty, and being small enough to tractably solve real-world problems. Therefore, future research should exploit realistic assumptions over multi-robot behaviour to develop smaller models which retain accurate representations of uncertainty and robot interactions; and exploit the structure of multi-robot problems, such as factored state spaces, to develop scalable solution methods.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1007/s43154-023-00104-0

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Research group:
Oxford Robotics Institute
Oxford college:
Pembroke College
Role:
Author
ORCID:
0000-0003-0862-331X


Publisher:
Springer Nature
Journal:
Current Robotics Reports More from this journal
Volume:
4
Issue:
3
Pages:
55-64
Publication date:
2023-08-15
Acceptance date:
2023-06-19
DOI:
EISSN:
2662-4087


Language:
English
Keywords:
Subtype:
Review
Pubs id:
1777966
Local pid:
pubs:1777966
Deposit date:
2024-05-17

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