arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2012.06005cs.AI
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多智能体路径搜索冲突消解的学习算法

Learning to Resolve Conflicts for Multi-Agent Path Finding with Conflict-Based Search

University of Southern California(南加州大学)

Taoan Huang, Bistra Dilkina, Sven Koenig

摘要:

基于路径搜索(CBS)是一个国家的最先进的多智能体路径发现算法。在高层,CBS反复检测冲突,并通过将当前问题分解为两个子问题来解决其中一个冲突。以前的工作选择的冲突分为三类,并始终从最高优先级的类中挑选一个冲突来解决。在这项工作中,我们提出了一个神谕冲突选择,结果在较小的搜索树的大小比以前的工作中使用的。然而,Oracle的计算速度很慢。因此,我们提出了一个机器学习框架的冲突选择,观察由预言机作出的决定,并学习一个冲突选择策略表示的线性排名功能,模仿预言机的决策准确,快速。基准地图上的实验表明,我们的方法显着提高了成功率,搜索树的大小和运行时间比目前最先进的CBS求解器。

英文摘要:

Conflict-Based Search (CBS) is a state-of-the-art algorithm for multi-agent path finding. At the high level, CBS repeatedly detects conflicts and resolves one of them by splitting the current problem into two subproblems. Previous work chooses the conflict to resolve by categorizing the conflict into three classes and always picking a conflict from the highest-priority class. In this work, we propose an oracle for conflict selection that results in smaller search tree sizes than the one used in previous work. However, the computation of the oracle is slow. Thus, we propose a machine-learning framework for conflict selection that observes the decisions made by the oracle and learns a conflict-selection strategy represented by a linear ranking function that imitates the oracle's decisions accurately and quickly. Experiments on benchmark maps indicate that our method significantly improves the success rates, the search tree sizes and runtimes over the current state-of-the-art CBS solver.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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