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• W2966544218 abstract "This work deals with the problem of planning conflict-free paths for mobile robots in cluttered environments. Since centralized, coupled planning algorithms are computationally intractable for large numbers of robots, we consider decoupled planning, in which robots plan their paths sequentially in order of priority. Choosing how to prioritize the robots is a key consideration. State-of-the-art prioritization heuristics, however, do not model the coupling between a robot's mobility and its environment. In this paper, we propose a prioritization rule that can be computed online by each robot independently, and that provides consistent, conflict-free path plans. Our innovation is to formalize a robot's path prospects to reach its goal from its current location. To this end, we consider the number of homology classes of trajectories, and use this as a prioritization rule in our decentralized path planning algorithm, whenever any robots enter negotiation to deconflict path plans. This prioritization rule guarantees a partial ordering over the robot set. We perform simulations that compare our method to five benchmarks, and show that it reaches the highest success rate (w.r.t. completeness), and that it strikes the best balance between makespan and flowtime objectives." @default.
• W2966544218 created "2019-08-13" @default.
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• W2966544218 date "2019-08-06" @default.
• W2966544218 modified "2023-09-25" @default.
• W2966544218 title "Multi-Robot Path Deconfliction through Prioritization by Path Prospects" @default.
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• W2966544218 doi "https://doi.org/10.48550/arxiv.1908.02361" @default.
• W2966544218 hasPublicationYear "2019" @default.
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