Important dates

Paper submission March 23, 2018
Notification April 20, 2018
Camera-ready submission May 25, 2018

Integrated Planning, Acting and Execution

An ICAPS 2018 Workshop
Delft, The Netherlands
June 25 or June 26, 2018

Automated planners are increasingly being integrated into online execution systems.  The integration may, for example, embed a domain-independent temporal planner in a manufacturing system (e.g., the Xerox printer application) or autonomous vehicles (e.g., a planetary rover or a underwater glider).  The integration may resemble something more like a "planning stack" where an automated planner produces an activity or task plan that is further refined before being executed by a reactive controller (e.g., robotics).  Or, the integration may be a domain-specific policy that maps states to actions (e.g., reinforcement learning).  Models for planning and execution can be integrated or distinct, the planning model can define context-dependent actions schema for on-line (re-)planning or can just specify flexibility to be handled separately at execution time. Online learning may or may not be involved, and may include adjusting or augmenting the model, determining when to repair versus replan, learning to switch policies, etc. A specific focus of these integrations involves online deliberation and execution management, bringing to the foreground concerns over how much computational effort planning should invest over time.

In any of these systems, a planner generates action sequences that are eventually dispatched to an executive, yet taking action in a dynamic world rarely proceeds according to plan.  When planning assumptions are challenged during execution, it raises a number of interesting questions about how the system should respond and what is the scope of online deliberation versus execution.  Is the "acting" side of the system responsible for a response or the "planning" side?  Or do the two need to cooperate and how much?  When should the activity planner abandon or preempt the current goals?  Should the task planner repair a plan or replan from scratch?   Should the executive adjust its current policy, switch to a new one, or learn a new policy from more relevant experience?

Objectives and Topics

Similar to IntEx 2017, the workshop aims to (1) provide a forum for discussing the challenges of integrating online planning, acting, and execution, and (2) to assess the potential for holding an integrated execution competitions at ICAPS.  We seek original papers concentrating on the following topics:

  • online planning, acting, and execution
  • position papers, benchmarks, or challenge problems for integrated execution
  • improving planning performance from execution experience
  • anytime or incremental planning
  • discussions of plan dispatching or plan executives
  • execution monitoring; comparing replanning, plan repair, regoaling, plan merging
  • managing open worlds with closed-world planners; model learning from experience
  • determining an observation policy; policy switching; incremental policy adjustment
  • modelling, languages and knowledge engineering for interleaved planning and execution
  • architectures and application for integrated planning and execution, execution monitoring, mixed-initiative on-line re-planning and execution


We plan a one day workshop with a focus on discussion.  In contrast to the invited speaker form, we plan to host “opposing views” debates, where two members of the community will be encouraged to debate a topic relevant to the workshop in as creative a way as possible. Small-group breakouts after the debates will address questions raised by the debate so all participants gain from the experience.


Submissions may be regular papers (up to 8 pages plus references) or short position/challenge papers (up to 4 pages plus references). All papers should conform to the AAAI formatting guidelines and style ( The papers must be submitted in a PDF format via EasyChair system ( Submissions will be reviewed by at least two referees.

We welcome existing publications from other venues that are appropriate for discussion at this workshop. Please note in the title area if this work is already accepted at another venue. If the work is under review at another venue (e.g., IJCAI-2018) please notify the organizers so we can avoid potential reviewing conflicts.

At least one author of each accepted paper must attend the workshop in order to present the paper. Authors must register for the ICAPS main conference in order to attend the workshop. There will be no separate workshop-only registration.

Important Dates

  • Paper submission: March 23, 2018
  • Notification of acceptance/rejection: April 20, 2018
  • Camera-ready paper submissions: May 25, 2018
  • Workshop date: June 24 or June 25, 2018 (TBA)

Organizing Committee

  • Tiago Vaquero, Jet Propulsion Laboratory, USA,
  • Mak Roberts, Naval Research Laboratory, USA,
  • Sara Bernardini, Royal Holloway University, London, UK,
  • Tim Niemueller, RWTH Aachen University, Germany,
  • Simone Fratini, European Space Agency, Germany,

Program Committee

  • Ron Alford, MITRE Corporation, USA
  • Michael Cashmore, King's College London, UK
  • Jeremy Frank, NASA Ames, USA
  • Nir Lipovetzky, University of Melbourne, Australia
  • Dan Magazzeni, King’s College London, UK
  • Fabio Mercorio, University of Milan–Bicocca, Italy
  • Bob Morris, NASA Ames, USA
  • Tiago Nogueira, European Space Agency, Germany
  • Scott Sanner, University of Toronto, Canada
  • Roni Stern, Ben Gurion University, Israel
  • Vikas Shivashankar, Amazon Kiva, USA
  • John Winder, UMBC, USA

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