On the Notion of Plan Quality for PDDL+

Authors

  • Francesco Percassi University of Huddersfield
  • Enrico Scala Universita' Degli Studi Di Brescia
  • Mauro Vallati University of Huddersfield

DOI:

https://doi.org/10.1609/icaps.v35i1.36106

Abstract

PDDL+ is a planning formalism designed to model mixed continuous-discrete problems. Despite its expressiveness, the absence of a well-established framework for evaluating plan quality makes it challenging to use PDDL+ in applications where plan shape and quality are crucial. This paper addresses this issue by introducing a comprehensive set of plan cost functions tailored for discrete-time PDDL+, along with a cost-preserving translation for generating cost-aware PDDL2.1 planning tasks. The plan cost functions provide a theoretical ground for assessing plan quality, whereas the translation shows their practicability by leveraging the connection between PDDL+ and PDDL2.1.

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Published

2025-09-16

How to Cite

Percassi, F., Scala, E., & Vallati, M. (2025). On the Notion of Plan Quality for PDDL+. Proceedings of the International Conference on Automated Planning and Scheduling, 35(1), 102–111. https://doi.org/10.1609/icaps.v35i1.36106