AAAI Publications, Ninth Annual Symposium on Combinatorial Search

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Numeric Planning via Search Space Abstraction (Extended Abstract)
León Illanes, Sheila A. McIlraith

Last modified: 2016-06-20

Abstract


Many real-world planning problems are best modeled as infinite search space problems, using numeric fluents. Unfortunately, most planners and planning heuristics do not directly support such fluents. We propose a search space abstraction technique that compiles a planning problem with numeric fluents into a finite state propositional planning problem. To account for the loss of precision resulting from the abstraction, we leverage a policy repair technique used for non-deterministic planning. We evaluate our approach on a set of benchmarks and compare it to state-of-the-art planners that deal with numeric fluents.

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