HDDL -A Language to Describe Hierarchical Planning Problems

Abstract : The research in hierarchical planning has made considerable progress in the last few years. Many recent systems do not rely on hand-tailored advice anymore to find solutions, but are supposed to be domain-independent systems that come with sophisticated solving techniques. In principle, this development would make the comparison between systems easier (because the domains are not tailored to a single system anymore) and-much more important-also the integration into other systems, because the modeling process is less tedious (due to the lack of advice) and there is no (or less) commitment to a certain planning system the model is created for. However, these advantages are destroyed by the lack of a common input language and feature set supported by the different systems. In this paper, we propose an extension to PDDL, the description language used in non-hierarchical planning, to the needs of hierarchical planning systems. We restrict our language to a basic feature set shared by many recent systems, give an extension of PDDL's EBNF syntax definition, and discuss our extensions, especially with respect to planner-specific input languages from related work.
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Contributor : Damien Pellier <>
Submitted on : Sunday, July 14, 2019 - 7:25:25 PM
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D Höller, G Behnke, P Bercher, S Biundo, H Fiorino, et al.. HDDL -A Language to Describe Hierarchical Planning Problems. Workshop on HTN Planning (ICAPS), Jul 2019, Berkeley, United States. ⟨hal-02183037⟩



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