Plenary Lecture

Fundamentals of Fuzzy Preference Modeling

Prof. Imre J. Rudas
Institute of Intelligent Engineering Systems
John von Neumann Faculty of Informatics
Budapest Tech
Becsi ut 96/b
H-1034 Budapest, Hungary
Email: rudas@bmf.hu

Co Author

Prof. J. FODOR

Abstract: In this lecture we give a survey of some classical as well as most recent models of preferences based on pairwise comparison of alternatives. The underlying framework is fuzzy logic in which preferences can be expressed in a gradual way. Fuzzy preference structures, as a generalization of Boolean (2-valued) preference structures, are studied. A fuzzy preference structure is a triplet of fuzzy relations expressing strict preference, indifference and incomparability in terms of truth degrees. An important issue is the decomposition of a fuzzy preference relation into such a structure. An appropriate approach requires some effort and axiomatic consideration, because the straightforward formalism of the Boolean case gives undesirable results.

We point out the essential role of the logical connectives behind fuzzy preferences through their axiomatic constructions and characterizations. This requires an extensive introduction to connectives in fuzzy logic as well.



Brief Biography of the Speaker:
Imre J. Rudas graduated from Banki Donat Polytechnic, Budapest in 1971, received the Master Degree in Mathematics from the Eotvos Lorand University, Budapest, the Ph.D. in Robotics from the Hungarian Academy of Sciences in 1987, while the Doctor of Science degree from the Hungarian Academy of Sciences. He received his first Doctor Honoris Causa degree from the Technical University of Kosice, Slovakia and his second Honorary Doctorate from University Polytechnica Timisoara, Romania..
He is active as a full university professor and Head of Department of Intelligent Engineering Systems. He serves as the Rector of Budapest Tech from August 1, 2003 for a period of four years.
He is a Fellow of IEEE, Senior Administrative Committee member of IEEE Industrial Electronics Society, member of Board of Governors of IEEE SMC Society, Chairman of the Hungarian Chapters of IEEE Computational Intelligence and IEEE Systems, Man and Cybernetics Societies.
He is the President of the Hungarian Fuzzy Association and Steering Committee Member of the Hungarian Robotics Association and the John von Neumann Computer Society.
He serves as an associate editor of some scientific journals, including IEEE Transactions on Industrial Electronics, member of editorial board of Journal of Advanced Computational Intelligence, member of various national and international scientific committees. He is the founder of the IEEE International Conference Series on Intelligent Engineering Systems and IEEE International Conference on Computational Cybernetics, and some regional symposia. He has served as General Chairman and Program Chairman of numerous scientific international conferences.
His present areas of research activity are: Computational Cybernetics, Robotics with special emphasis on Robot Control, Soft Computing, Computed Aided Process Planning, Fuzzy Control and Fuzzy Sets. He has published one book, more than 400 papers in books, various scientific journals and international conference proceedings.