Weak and Strong Reversibility of Non-deterministic Actions: Universality and Uniformity

Authors

  • Jakub Med Czech Institute of Informatics, Robotics and Cybernetics, Czech Technical University in Prague Faculty of Electrical Engineering, Czech Technical University in Prague
  • Lukáš Chrpa Czech Institute of Informatics, Robotics and Cybernetics, Czech Technical University in Prague
  • Michael Morak University of Klagenfurt
  • Wolfgang Faber University of Klagenfurt

DOI:

https://doi.org/10.1609/icaps.v34i1.31496

Abstract

Classical planning looks for a sequence of actions that transform the initial state of the environment into a goal state. Studying whether the effects of an action can be undone by a sequence of other actions, that is, action reversibility, is beneficial, for example, in determining whether an action is safe to apply. This paper deals with action reversibility of non-deterministic actions, i.e., actions whose application might result in different outcomes. Inspired by the established notions of weak and strong plans in non-deterministic (or FOND) planning, we define the notions of weak and strong reversibility for non-deterministic actions. We then focus on the universality and uniformity of action reversibility, that is, whether we can always undo all possible effects of the action by the same means (i.e., policy), or whether some of the effects can never be undone. We show how these classes of problems can be solved via classical or FOND planning and evaluate our approaches on FOND benchmark domains.

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Published

2024-05-30

How to Cite

Med, J., Chrpa, L., Morak, M., & Faber, W. (2024). Weak and Strong Reversibility of Non-deterministic Actions: Universality and Uniformity. Proceedings of the International Conference on Automated Planning and Scheduling, 34(1), 369-377. https://doi.org/10.1609/icaps.v34i1.31496