| J. L. Bresina and R. Washington. Robustness via run-time adaptation of contingent plans. In Proceedings of the AAAI- |
....the option with the highest expected utility is chosen. For this demonstration, the contingent planner generated mutually exclusive branches. A novel feature of the CRL Executive is its support for floating contingencies, which are plan fragments that may be inserted at any point in execution [3]. For example, a plan to perform opportunistic science during a traverse is naturally expressed as a floating contingency, since the presence and position of an interesting science target is unknown before the traverse. Likewise, a plan to stop and recharge the battery is another example of a ....
Bresina, J., and R. Washington. "Robustness via run-time adaptation of contingent plans," in Proceedings of the AAAI-2001.
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J. L. Bresina and R. Washington. Robustness via run-time adaptation of contingent plans. In Proceedings of the AAAI-
....utilities of plan branches with respect to the situation at execution time [7] If we allow limited innovation on board, the rover can adapt its plan to the situation by skipping Fig. 2. The K9 Rover. steps or merging in plan fragments from a plan library constructed and verified on the ground [8]. The capabilities described to this point make use of plans that have been prespecified to full detail. To specify plans at a higher level of abstraction, such as desired science targets, the decomposition of the high level tasks into detailed actions must be performed on board in a way that is ....
Bresina, J.L., Washington, R.: Robustness Via Run-Time Adaptation of Contingent Plans. AAAI Spring Symposium on Robust Autonomy (2001)
....the rover to choose the best course of action within its current plan, but this can be insufficient in a uncertain environment. The size and complexity of the plan necessary to handle all possible events renders it impractical to build, verify, and transmit to the rover. Bresina and Washington [7] have described a facility for limited adaptation of an existing plan during execution. Plan adaptation is restricted to two types of operations: skipping steps of an existing plan, and merging plans from a library of alternate plans with the existing plan. The selection of plan adaptation ....
J.L. Bresina and R. Washington. Robustness via run-time adaptation of contingent plans. AAAI Spring Symposium on Robust Autonomy, 2001.
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