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arXiv 1702.07544cs.MAcs.SYeess.SY
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可扩展的多智能体协调与分布式在线开环规划

Scalable Multiagent Coordination with Distributed Online Open Loop Planning

Institute for Informatics Mobile and Distributed Systems LMU Munich(慕尼黑大学信息学研究所移动与分布式系统)

Lenz Belzner, Thomas Gabor

AI总结:

本文提出分布式在线开环规划框架,用于不确定环境下的多智能体协调决策,通过基于生成模型的在线启发式搜索实现有效规划,并通过分布式在线汤普森采样方法解决探索与利用的矛盾。

摘要:

我们提出了分布式在线开环规划(DOOLP),一种用于在线多智能体协调和决策的通用框架,在不确定环境下通过在线启发式搜索在由领域动态的生成模型定义的空间中进行操作。我们还提出了分布式在线汤普森采样(DOTS)作为DOOLP框架的有效实例。DOTS通过将每个智能体的多个多臂老虎机串联起来,来建模智能体的选择序列,并利用汤普森采样来处理动作价值的不确定性。汤普森采样的贝叶斯方法允许有效建模和估计关于(a)自身动作价值和(b)其他智能体行为的不确定性。这种方法在资源有限的情况下探索大规模搜索空间时,能够提供系统且统计上合理的解决方案来解决探索与利用的矛盾。我们在智能工厂案例研究中实现了DOTS,并取得了积极的实证结果。即使只搜索潜在搜索空间的一小部分,我们观察到有效的、稳健的和可扩展的规划和协调能力。

英文摘要:

We propose distributed online open loop planning (DOOLP), a general framework for online multiagent coordination and decision making under uncertainty. DOOLP is based on online heuristic search in the space defined by a generative model of the domain dynamics, which is exploited by agents to simulate and evaluate the consequences of their potential choices. We also propose distributed online Thompson sampling (DOTS) as an effective instantiation of the DOOLP framework. DOTS models sequences of agent choices by concatenating a number of multiarmed bandits for each agent and uses Thompson sampling for dealing with action value uncertainty. The Bayesian approach underlying Thompson sampling allows to effectively model and estimate uncertainty about (a) own action values and (b) other agents' behavior. This approach yields a principled and statistically sound solution to the exploration-exploitation dilemma when exploring large search spaces with limited resources. We implemented DOTS in a smart factory case study with positive empirical results. We observed effective, robust and scalable planning and coordination capabilities even when only searching a fraction of the potential search space.

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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