9th Nonmonotonic Reasoning, Action, and Change (NRAC-2011)

The 9th International Workshop on Nonmonotonic Reasoning, Action and Change (NRAC-2011) will be held as part of the workshop programme of the 2011 International Joint Conference on Artificial Intelligence (IJCAI-2011) at Barcelona, Spain, in July 2011.

NRAC is a well-established forum for researchers interested in sharing their experiences in work in the areas of Nonmonotonic Reasoning, Reasoning about Action, and Belief Revision. An intelligent agent exploring a rich, dynamic world, needs cognitive capabilities in addition to basic functionalities for perception and reaction. The abilities to reason nonmonotonically, to reason about actions, and to change one's beliefs, have been identified as fundamental high-level cognitive functions necessary for common sense. Research in all three areas has made significant progress during the last two decades of the past century. It is, however, crucial to bear in mind the common goal of designing intelligent agents. Researchers should be aware of advances in all three fields since 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.

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.


Workshop Chairs:
- Sebastian Sardina (RMIT University, Australia)
- Stavros Vassos (National and Kapodistrian University of Athens, Greece)

Programme Committee:
- Xiaoping Chen, University of Science and Technology China, China
- Jim Delgrande, Simon Fraser Unviersity, Canada
- Jérôme Lang, Universite Paul Sabatier, France
- Thomas Meyer, Meraka Institute, South Africa
- Michael Thielscher, University of NSW, Australia
- Sheila McIlraith, University of Toronto, Canada
- Eduardo Fermé University of Madeira, Portugal
- Dongmo Zhang, University of Western Sydney, Australia
- Mehdi Dastani, Utrecht University, The Netherlands
- Giuseppe De Giacomo, Sapienza Universita' di Roma, Italy
- Christian Fritz, PARC (Palo Alto Research Center), USA
- Leora Morgenstern, SAIC Advanced Systems and Concepts, USA
- Pavlos Peppas, University of Patras, Greece
- Sajjad Haider, Institute of Business Administratio, Pakistan
- Alfredo Gabaldon, Universidade Nova de Lisboa, Portugal

Steering Committee:
- Gerhard Brewka, University of Leipzig, Germany
- Michael Thielscher, University of NSW, Australia
- Leora Morgenstern, SAIC Advanced Systems and Concepts, USA
- Maurice Pagnucco, University of NSW, Australia
- Pavlos Peppas, University of Patras, Greece
- Mary-Anne Williams, University of Technology, Sydney, Australia
- Andreas Herzig, Universite Paul Sabatier, France
- Benjamin Johnston, University of Technology, Sydney, Australia

Sessions