When Abstractions Met Landmarks

Vol. 20 (2010): Twentieth International Conference on Automated Planning and Scheduling

Volume

Vol. 20 (2010): Twentieth International Conference on Automated Planning and Scheduling

Full Technical Papers

Abstractions and landmarks are two powerful mechanisms for devising admissible heuristics for classical planning. Here we aim at putting them together by integrating landmark information into abstractions, and propose a concrete realization of this direction suitable for structural-pattern abstractions, as well as for other abstraction heuristics. Our empirical evaluation shows that landmark information can substantially improve the quality of abstraction heuristic estimates.

10.1609/icaps.v20i1.13409