Dynamic Tree Databases in Automated Planning

Fuente: arXiv
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Autori principali: Joergensen, Oliver, Drexler, Dominik, Seipp, Jendrik
Natura: Preprint
Pubblicazione: 2025
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author Joergensen, Oliver
Drexler, Dominik
Seipp, Jendrik
author_facet Joergensen, Oliver
Drexler, Dominik
Seipp, Jendrik
contents A central challenge in scaling up explicit state-space search for large tasks is compactly representing the set of generated states. Tree databases, a data structure from model checking, require constant space per generated state in the best case, but they need a large preallocation of memory. We propose a novel dynamic variant of tree databases for compressing state sets over propositional and numeric variables and prove that it maintains the desirable properties of the static counterpart. Our empirical evaluation of state compression techniques for grounded and lifted planning on classical and numeric planning tasks reveals compression ratios of several orders of magnitude, often with negligible runtime overhead.
format Preprint
id arxiv_https___arxiv_org_abs_2511_12677
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Dynamic Tree Databases in Automated Planning
Joergensen, Oliver
Drexler, Dominik
Seipp, Jendrik
Artificial Intelligence
A central challenge in scaling up explicit state-space search for large tasks is compactly representing the set of generated states. Tree databases, a data structure from model checking, require constant space per generated state in the best case, but they need a large preallocation of memory. We propose a novel dynamic variant of tree databases for compressing state sets over propositional and numeric variables and prove that it maintains the desirable properties of the static counterpart. Our empirical evaluation of state compression techniques for grounded and lifted planning on classical and numeric planning tasks reveals compression ratios of several orders of magnitude, often with negligible runtime overhead.
title Dynamic Tree Databases in Automated Planning
topic Artificial Intelligence
url https://arxiv.org/abs/2511.12677