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摘要
A prametric is introduced for describing the consensus gap in group decision making problem and a consensus formation procedure is proposed. It is assumed that each individual's ties-permitted ordinal ranking constitutes a partition of the alternative set, and that the alternatives in a tie are ranked together occupying consecutive positions. A preference sequence matrix is thus constructed with entries indicating the alternatives' potential positions by the expert's preferences. To elicit the group ranking, a certain prametric, namely, the consensus gap indicator is defined for measuring the consensus gap between two preference sequences with ties. Some properties are elaborated, among which an inequality is used to get the potential ties-permitted compromise ranking. An illustrative example is also included.
- 出版日期2015-5
- 单位北京理工大学
