Call for Papers

18th International Workshop on Qualitative Reasoning

August 2-4, 2004, Northwestern University, Evanston, Illinois, USA



Qualitative Reasoning is an exciting research area at the interface between Cognitive Science and Artificial Intelligence that combines the quest for fundamental understanding of how people reason about physical systems with new ways to supplement conventional modeling, analysis, diagnosis, and control techniques to tackle real-world applications. The 18th edition of the workshop will be held in Evanston, Illinois, co-located with the 26th Annual meeting of the Cognitive Science Society, which will be in Chicago, Illinois (a subway ride away) from August 4th through August 8th.  



Paper submissions are encouraged in the following research topics:

The Program Chairs are
Johan de Kleer (PARC, Inc.) and Kenneth D. Forbus (Northwestern University). 

Important Dates

Please note: Due to the Easter holidays, the deadline for submitting papers has been moved to April 26th, providing an additional two weeks to polish your work.

Submission of Papers 

Format for submissions: Please use the format for the Cognitive Science Society, available at   The relevant format is the format for papers, which we are using for both papers and posters in this meeting.  Please note that we can only accept electronic submissions, in PDF format.  If you are not familiar with how to generate PDF files, detailed instructions can be found here, including a pointer to a free service.  

Additional Participants

People who wish to attend the workshop without submitting a paper or a poster should send a request to

Program Committee


We have reserved a block of rooms at a hotel near campus:


Hilton Garden Inn
1818 Maple Avenue
Evanston IL 60201


The name of the block is “QR04 Workshop” at $109/room.  You must reserve a room before July 9, 2004 to guarantee this rate.  (Please note: Students may double up to save money.  Dormitory rooms at Northwestern, due to the extremely high demand, are more expensive than this rate.)

For more information

For questions, please contact


Last edited 06/11/04, by JS.