Explaining Plan Quality Differences
Benjamin Krarup, Amanda Coles, Derek Long, David Edward Smith · Proceedings of the International Conference on Automated Planning and Scheduling · 2024
We describe a method for explaining the differences between the quality of plans produced for similar planning problems. The method exploits a process of abstracting away details of the planning problems until the difference in solution quality they support has been minimised. We give a general definition of a valid abstraction of a planning problem. We then give the details of the implementation of a number of useful abstractions. Finally, we present a breadth-first search algorithm for finding suitable abstractions for explanations; and detail the results of an evaluation of the approach.