Fuzzy preference orderings in group decision making Tetsuzo Tanino
Department of Mechanical Engineering II, Tohoku University, Sendai 980, Japan


Available online 10 December 2004.


AbstractIn this paper, some use of fuzzy preference orderings in group decision making is discussed. First, fuzzy preference orderings are defined as fuzzy binary relations satisfying reciprocity and max-min transitivity. Then, particularly in the case where individual preferences are represented by utility functions (utility values), group fuzzy preference orderings of which fuzziness is caused by differences or diversity of individual opinions are defined. Those orderings might be useful for proceeding the group decision making process smoothly, in the same manner as the extended contributive rule method.

Author Keywords: Fuzzy preference ordering; Group decision making; Additive transitivity; Multiplicative transitivity; Utility functions; Decision making process