Temporal Constraint Reasoning with Preferences and Probabilities
Temporal Constraint Reasoning with Preferences and Probabilities
复制标题
具有偏好和概率的时间约束推理
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
N. Yorke
中科院分区：
文献类型：
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作者：
R. Morris;P. Morris;L. Khatib;N. Yorke
在一个不确定的世界里，一个理性的计划主体必须同时考虑行动的预期结果和对这些结果的偏好的不确定性。这项工作的重点是系统地探索事件持续时间的偏好和不确定性之间的相互作用，表示为某些事件何时发生的概率分布。我们扩展了以前的工作，代表的事件和持续时间，不受代理人的控制，以及定量的信念，当这些事件可能发生。介绍了两个推理问题，并提出了解决它们的方法。首先，给定期望的总体偏好水平，计算满足或超过指定偏好程度的计划存在的可能性。第二，给定一组关于事件持续时间的初始信念，以及对时间的偏好，推断出一组反映这些信念的修正偏好。
In an uncertain world, a rational planning agent must simultaneously reason with uncertainty about expected outcomes of actions and preferences for those outcomes. This work focuses on systematically exploring the interactions between preferences for the durations of events, and uncertainty, expressed as probability distributions about when certain events will occur. We expand previous work by representing events and durations that are not under the control of the agent, as well as quantitative beliefs about when those events are likely to occur. Two reasoning problems are introduced and methods for solving them proposed. First, given a desired overall preference level, compute the likelihood that a plan exists that meets or exceeds the specified degree of preference. Second, given an initial set of beliefs about durations of events, as well as preferences for times, infer a revised set of preferences that reflect those beliefs.