Proceedings

Managing Temporal Uncertainty Through Waypoint Controllability

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Proceedings of the Sixteenth International Joint Conference on Artificial Intelligence. Temporal Reasoning. Pages 1253-1257.

Abstract

Simple Temporal Networks have proved useful in applications that involve metric time. However, many applications involve events whose timing is not controlled by the execution agent. A number of properties relating to overall controllability in such cases have been introduced in [Vidal and Ghallab , 1996] and [Vidal and Fargier, 1997], including Weak and Strong Controllability. We derive some new results concerning these properti es. In particular, we prove the negation of Weak Controllability is NP-hard, confirming a conjecture in [Vidal and Fargier, 1997]. We also introduce a more general controllability property of which Weak and Strong Controllability are special cases. A propagation algorithm is provided for determining whether the property holds, and we identify tractable cases where the algorithm runs in polynomial time.

Paul H. Morris, and Nicola Muscettola. 1999. Managing Temporal Uncertainty Through Waypoint Controllability. In Proceedings of the Sixteenth International Joint Conference on Artificial Intelligence, IJCAI-99. IJCAI, 1253–1257. https://ijcai.org/proceedings/1999/178
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