106 AI MAGAZINE
The board of judges acknowledged the efforts of all
the competitors. Honorable mentions were then
awarded in two categories:
The Innovative Methodology Award was presented
to Emre Savas and Michael Cashmore. This team gen-
erated a complete domain transition graph for the
RPG scenario by hand, analyzed the graph to remove
bad states and transitions, and then created a com-
pact and elegant model for the domain.
The Dilithium Crystal Award was presented to Sara
Bernardini, Maria Fox, and Chiara Piacentini. This
team was the only one to produce a working model
that correctly captures most of the requirements of
the Star Trek Scenario, which was the most difficult
domain in the competition.
The Overall Winner Award was presented to the
team composed of Nir Lipovetzky and Christian
Muise. This team demonstrated a great ability to
develop high-quality models quickly in multiple scenarios, while utilizing, and at the same time enhancing, model development tools for PDDL.
Given the positive feedback from competitors and
judges, we believe that ICKEPS 2016 was a success. It
is therefore envisaged that future ICKEPS will exploit
a similar format.
We observed that the generated models showed sig-
nificant differences, even on easier scenarios, where,
for instance, the number of operators ranged from
two to seven, with remarkable impact on readability
and generality. The impact on different planning
approaches has to be assessed, in order to advance
the state-of-the-art of knowledge engineering.
Two items were of concern at ICKEPS. First, most
teams did not use any tools (except text editors), and
thus relied only on their expertise. Second, existing
tools do not effectively support cooperation: to cope
with the growing complexity of planning applications, planning experts have to cooperate and coordinate the knowledge engineering process. In addition, the number of participants of ICKEPS is still not
very large, especially when compared with the latest
edition of the International Planning Competition
(Vallati et al. 2015). This suggests that the planning
community underestimates the importance of
knowledge engineering, despite of its enormous
impact on applicability of domain-independent
planning in real-world scenarios.
Vallati, M.; Chrpa, L.; Grzes, M.; McCluskey, T. L.; Roberts,
M.; and Sanner, S. 2015. The 2014 International Planning
Competition: Progress and Trends. AI Magazine 36( 3): 90–
Lukáš Chrpa is a research fellow at University of Huddersfield. His main research interests are in the area of AI planning, machine learning, and knowledge engineering. He
was a co-organizer of the 2014 International Planning Competition (IPC).
Thomas L. McCluskey is a coleader of the PARK research
group of the University of Huddersfield, UK. His research
interests include automated plan generation, domain modeling, information extraction, knowledge engineering,
machine learning, data mining, requirements validation,
and formal specification. He cofounded the Knowledge
Engineering for Planning and Scheduling competitions. He
also co-organized IPC-2014.
Mauro Vallati is a senior lecturer at University of Huddersfield, UK. His main research interest is in AI planning. He
was a co-organizer of the 2014 International Planning Competition.
Tiago Vaquero is a postdoctoral fellow at MIT CSAIL and
Caltech. His research interests include autonomous systems,
automated planning and scheduling, knowledge engineering, robotic space exploration, artificial intelligence, and
robotics in general. He was a co-organizer of the 2012 edition of the International Competition on Knowledge Engineering for Planning and Scheduling.
Interesting in Hosting
AAAI, in cooperation with the ICWSM Steering
Committee, is currently seeking proposals for a
host city for the Thirteenth International AAAI
Conference on Web and Social Media (ICWSM-
19). The conference is typically held Monday –
Thursday during the timeframe of mid-May
through mid-June. Final selection of a site will
be made by August 2017. For more information
about proposal requirements, please write to
Note: ICWSM- 18 will be held at Stanford
University in Palo Alto, California USA.