2nd ICAPS Workshop on Hierarchical Planning

Collocated with ICAPS 2019 in Berkeley, USA.

The motivation for using hierarchical planning formalisms is manifold. It ranges from an explicit and predefined guidance of the plan generation process and the ability to represent complex problem solving and behavior patterns to the option of having different abstraction layers when communicating with a human user or when planning co-operatively. The best-known formalism in the field is Hierarchical Task Network (HTN) planning. In addition, there are several other hierarchical planning formalisms, e.g., hybrid planning (incorporating aspects from POCL planning), Hierarchical Goal Network (HGN) planning (incorporating a hierarchy on goals), or formalisms that combine task hierarchies with timeline planning (e.g. ANML). Hierarchies induce fundamental differences from classical planning, creating distinct computational properties and requiring separate algorithms from non-hierarchical planners. Many of these aspects of hierarchical planning are still unexplored. Thus, we encourage any contribution, independent of the underlying hierarchical planning formalism, and want to provide a forum for researchers to discuss the various aspects of hierarchical planning. Topics of interests include but are not limited to: The formatting guidelines (author kit, etc.) are the same as at ICAPS 2019. Authors may submit long papers (8 pages plus up to one page of references) or short papers (4 pages plus up to one page of references). In case of acceptance, the full 5, resp. 9, pages can be used for the paper, e.g. to address the reviewers' comments. Like at the main conference, there will be a high quality double-blind review process against the standard ICAPS criteria of significance, soundness, scholarship, clarity, and reproducibility. However, submissions may be less evolved than at the main conference. We will provide a link to the submission system prior to the submission deadline. We encourage the submission of papers that are, at the time of submission, currently under review at the IJCAI conference 2019. In case such a double submission gets both accepted at IJCAI and at the workshop, the camera-ready paper for the workshop might be the same as for IJCAI or a (new) extended abstract of this paper of at most two pages including references (authors' choice).