【摘要】 提出了一个用于规划识别的多层次时态推理算法。该算法可将以往的时态推理从单个规划的分解推广到多层次规划系统，使之更具普遍性；可将观察中的时态关系作为约束信息在层次结构中传播，减少候选规划的数目，提高规划识别的效率和准确性。更多还原

【Abstract】 This paper presents a temporal reasoning algorithm about multi-level hierarchy which isused for plan recognition. It generalizes the previous temporal reasoning from the decomposition of thesingle plan to the multilayer plan system,therefore it has greater universality. The algorithm propa-gates the observed temporal relations used as the constraint information in the hierarchical structures,reduces the candidates of plans and increases the efficiency and accuracy of plan recognition.更多还原