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Validating plans with exogenous events

Howey, R. and Long, D. and Fox, M. (2004) Validating plans with exogenous events. In: Proceedings of the 23rd Workshop of the UK Planning and Scheduling Special Interest Group (PlanSIG 2004). UNSPECIFIED, pp. 78-87.

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We are concerned with the problem of deciding the validity of a complex plan involving interacting continuous activity. In these situations there is a need to model and reason about the continuous processes and events that arise as a consequence of the behaviour of the physical world in which the plan is expected to execute. In this paper we describe how events, which occur as the outcome of uncontrolled physical processes, can be taken into account in determining whether a plan is valid with respect to the domain model. We do not consider plan generation issues in this paper but focus instead on issues in domain modelling and plan validation.