We would like to thank our supervisor Torulf Mollestad for much feedback and interest during the development stage. He always had ideas for improvements of our program, and was always eager to try a new version. In addition, Torulf Mollestad provided good feedback on our report.
The University of Warsaw, Poland, provided a fundament for our system with source code from the Rough Sets Expert System. Our code is based on code written by Jan G. Bazan, Adam Cykier, Andrzej Skowron and Piotr Synak and not least the code of Jon Petter Hjulstad's diploma work. Piotr Synak had a visit to Norway, during which we had a helpful meeting discussing the RSES system and Rough Sets.
Ph.D.Student Ning Shan at the University of Regina, Canada, provided us with some interesting papers by e-mail, and had useful suggestions to our work.
We are also grateful to Jon Petter Hjulstad for being very helpful with expaining some parts of his RGEN-program and discussing theory of Rough Sets and data mining in general.
Trondheim, May 4, 1996