Title :
Group decision with inconsistent knowledge
Author :
Guo, Peijun ; Zeng, Dao-Zhi ; Shishido, Harunori
Author_Institution :
Kagawa Univ., Japan
fDate :
11/1/2002 12:00:00 AM
Abstract :
In this paper, dual exponential possibility distributions, namely, upper and lower exponential possibility distributions, are identified from the given data to characterize a decision-maker´s knowledge. A decision group´s knowledge can be represented by a set of such dual possibility distributions. The inherent diversity of knowledge among decision-makers is characterized by a conflict index. A conflict resolution model is proposed based on the conflict index, which integrates multiple possibility distributions identified into a new one to represent compromised knowledge of a decision group. As an application, a portfolio selection problem with multiple decision-makers is considered.
Keywords :
decision making; economic cybernetics; fuzzy set theory; group decision support systems; possibility theory; conflict analysis; conflict resolution; decision-makers; fuzzy sets; group decision; portfolio selection; possibility theory; Cognition; Decision making; Educational programs; Educational technology; Fuzzy sets; Game theory; Humans; Portfolios; Possibility theory; Stability;
Journal_Title :
Systems, Man and Cybernetics, Part A: Systems and Humans, IEEE Transactions on
DOI :
10.1109/TSMCA.2002.807045