HDDL: An extension to PDDL for expressing hierarchical planning problems

D Höller, G Behnke, P Bercher, S Biundo… - Proceedings of the AAAI …, 2020 - aaai.org
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 …

[PDF][PDF] A Survey on Hierarchical Planning-One Abstract Idea, Many Concrete Realizations.

P Bercher, R Alford, D Höller - IJCAI, 2019 - pdfs.semanticscholar.org
A Survey on Hierarchical Planning – One Abstract Idea, Many Concrete Realizations
August 14, 2019 Page 1 A Survey on Hierarchical Planning – One Abstract Idea, Many …

HTN planning as heuristic progression search

D Höller, P Bercher, G Behnke, S Biundo - Journal of Artificial Intelligence …, 2020 - jair.org
The majority of search-based HTN planning systems can be divided into those searching a
space of partial plans (a plan space) and those performing progression search, ie, that build …

A generic method to guide HTN progression search with classical heuristics

D Höller, P Bercher, G Behnke, S Biundo - Proceedings of the …, 2018 - ojs.aaai.org
HTN planning combines actions that cause state transition with grammar-like decomposition
of compound tasks that additionally restricts the structure of solutions. There are mainly two …

totSAT-Totally-ordered hierarchical planning through SAT

G Behnke, D Höller, S Biundo - Proceedings of the AAAI Conference on …, 2018 - ojs.aaai.org
In this paper, we propose a novel SAT-based planning approach for hierarchical planning
by introducing the SAT-based planner totSAT for the class of totally-ordered HTN planning …

The PANDA framework for hierarchical planning

D Höller, G Behnke, P Bercher, S Biundo - KI-Künstliche Intelligenz, 2021 - Springer
During the last years, much progress has been made in hierarchical planning towards
domain-independent systems that come with sophisticated techniques to solve planning …

Revealing hidden preconditions and effects of compound htn planning tasks–a complexity analysis

C Olz, S Biundo, P Bercher - Proceedings of the AAAI Conference on …, 2021 - ojs.aaai.org
Abstract In Hierarchical Task Network (HTN) planning, compound tasks need to be refined
into executable (primitive) action sequences. In contrast to their primitive counterparts …

[PDF][PDF] On Guiding Search in HTN Planning with Classical Planning Heuristics.

D Höller, P Bercher, G Behnke, S Biundo - IJCAI, 2019 - staff.fnwi.uva.nl
Planning is the task of finding a sequence of actions that achieves the goal (s) of an agent. It
is solved based on a model describing the environment and how to change it. There are …

[PDF][PDF] Delete-and Ordering-Relaxation Heuristics for HTN Planning.

D Höller, P Bercher, G Behnke - IJCAI, 2020 - ijcai.org
In HTN planning, the hierarchy has a wide impact on solutions. First, there is (usually) no
statebased goal given, the objective is given via the hierarchy. Second, it enforces actions to …

Space debris removal: A game theoretic analysis

R Klima, D Bloembergen, R Savani, K Tuyls, D Hennes… - Games, 2016 - mdpi.com
We analyse active space debris removal efforts from a strategic, game-theoretical
perspective. Space debris is non-manoeuvrable, human-made objects orbiting Earth, which …