IJCAI 2007
Crashing Tweety

Seventh IJCAI International Workshop on
Nonmontonic Reasoning, Action and Change

Workshop Aims

Intelligent agents exploring complex and dynamic physical and information rich landscapes require sophisticated capabilities for perception, reasoning and planning. The abilities to reason nonmonotonically, to reason about actions, and to change one's beliefs, have been identified as fundamental high-level cognitive functions. Underlying these functions is the need to manage inconsistent, uncertain, and changing information.

These areas provide significant research challenges and often advances in one field can be translated into advances in another. Many deep relationships have already been established between the three areas and the primary aim of this workshop is to further promote this cross-fertilization. A closer look at recent developments in the three fields reveals just how fruitful such cross-fertilization can be.

This workshop will bring together researchers with the aim to:

  • Compare and evaluate existing formalisms.
  • Report on new developments.
  • Identify the most important open problems and research questions.
  • Identify possibilities of solution transferral between the areas.
  • Identify important challenges for the advancement of the areas.
  • Discuss challenges encountered when applying techniques in applications.


The list of accepted papers and a tentative workshop program is available for download in PDF format here.


Registration for NRAC 2007 is managed by IJCAI. Forms and Information on registration, pricing, travel and accommodation are available on the IJCAI-07 website. Participants are strongly urged to register as soon as possible to take advantage of discounted registration fees and to secure accommodation.

Invited Speakers

Peter Gärdenfors, Lund University Cognitive Science, Sweden
Title: Bring in the forces! Modelling actions and functional properties in conceptual spaces.

Manuela Veloso, Carnegie Mellon University, USA
Title: Why and How to Resolve Conflicting Information in Multi-Robot Systems.

Best Student Paper Prize from Google Inc

Google Inc is sponsoring the Best Student Paper Prize and Student Travel support to NRAC-07. Thank you Google!

To be eligible for the Best Paper Prize and/or Travel Support, a student must be the first author and primary contributor, and the words "Student Paper" clearly stated under the author affliations on the submitted paper. A Student is someone enrolled at a recognised University at the time of submission, i.e. September 25, 2006. Please contact Mary-Anne Williams if you require clarification. The Google Prize and Travel Grants will be announced December 6, 2006.

Paper Content, Length and Format

NRAC-07 paper submissions must be formatted according to the IJCAI-07 paper guidelines at http://www.ijcai-07.org

Papers must not exceed 8 formatted pages. Overlength papers will not be accepted for publication. Camera-ready versions of accepted papers should be submitted electronically at http://www.easychair.org/NRAC07/ by the due date November 13, 2006.

Please ensure the author names and affliations are under the title.

Submissions should emphasize and justify their innovation and significance.

Please note: Papers should describe new unpublished work. Accepted IJCAI-07 Papers and Posters will not be accepted at NRAC-07.

Important Dates

Submission: September 25, 2006
Notification: October 24, 2006 (Midnight Hawaii Time)
Camera Ready Version Receipt: November 13, 2006
Workshop: January 7 and 8, 2007

Workshop Chairs

Alankar Karol, Visual Risk (Australia)
Pavlos Peppas, University of Patras (Greece)
Mary-Anne Williams, University of Technology, Sydney (Australia)

Program Committee

Eyal Amir, University of Illinois (USA)
Gerhard Brewka, University of Leipzig (Germany)
Xiaoping Chen, University of Science and Technology China (China)
Jim Delgrande, Simon Fraser Unviersity (Canada)
Patrick Doherty, University of Linkoping (Sweden)
Norman Foo, University of NSW (Australia)
Alon Halevy, Google Inc. (USA)
Benjamin Johnston, University of Technology, Sydney (Australia)
Daniel Le Berre, University of Artois (France)
Gerhard Lakemeyer, Aachen University of Technology (Germany)
Jerome Lang, Universite Paul Sabatier (France)
Wei Liu, University of Western Australia (Australia)
Fangzhen Lin, Hong Kong Univ. of Science & Tech (China)
Aarati Martino, Google Inc. (USA)
John McCarthy, Stanford University (USA)
Thomas Meyer, National ICT Australia (Australia)
Leora Morgenstern, IBM T.J.Watson Research Center (USA)
Maurice Pagnucco, University of NSW (Australia)
Erik Sandewall, Linkoping University (Sweden)


All inquiries should be sent to:
Mary-Anne Williams
NRAC-07 Co-Chair
Innovation and Technology Research Laboratory
University of Technology, Sydney
NSW 2007, Australia