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Exploiting Shared Resource Dependencies in Spectrum Based Plan Diagnosis

机译:在基于频谱的计划诊断中利用共享资源依赖性

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In case of a plan failure, plan-repair is a more promising solution than replanning from scratch. The effectiveness of plan-repair depends on knowledge of which plan action failed and why. Therefore, in this paper, we propose an Extended Spectrum Based Diagnosis approach that efficiently pinpoints failed actions. Unlike Model Based Diagnosis (MBD), it does not require the fault models and behavioral descriptions of actions. Our approach first computes the likelihood of an action being faulty and subsequently proposes optimal probe locations to refine the diagnosis. We also exploit knowledge of plan steps that are instances of the same plan operator to optimize the selection of the most informative diagnostic probes. In this paper, we only focus on diagnostic aspect of plan-repair process.
机译:如果计划失败,计划修复是一个比从头划分更新的解决方案。计划修复的有效性取决于哪些计划行动失败的知识以及为什么。因此,在本文中,我们提出了一种扩展的基于频谱的诊断方法,其有效地定位失败的动作。与基于模型的诊断(MBD)不同,它不需要故障模型和行为描述。我们的方法首先计算了一个缺陷的动作的可能性,随后提出了优化探针位置以优化诊断。我们还利用了对平面步骤的了解,这些步骤是同一计划运营商的实例,以优化最丰富地诊断探针的选择。在本文中,我们仅关注计划修复过程的诊断方面。

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