关键词: 水路运输, 群决策, 模糊推理, 失控船, 偏好决策

Abstract:

In order to dispose the not under command (NUC) ships effectively and safely in inland waterway transportation, a modified group decision making methodology is proposed based on fuzzy rule reasoning and decision preference. First, according to the statistical data and literature review, the influencing factors of emergency disposal options is obtained, and the decision attribute is also defined. Second, the fuzzy reasoning is introduced to integrate the influencing factors; moreover, after establishment of the fuzzy rule base and fuzzy inference engine, the linguistic variables of decision criteria with respect to the alternatives are defuzzified into crisp values. Third, considering the decision-maker may prefer different formats of information, a consistency-based linear programming method is proposed to integrate the information, including interval utility value, intuitionistic fuzzy numbers and interval multiplicative preference relation. The weights of attributes and the best alternative, then, can be obtained. Finally, a typical illustrative example is used to verify the proposed approach, and the result represents that this model is useful and beneficial for disposal of NUC ships.

Key words: waterway transportation, group decision-making, fuzzy reasoning, NUC ships, decision preference