基于优化赋权法的船型技术经济模糊综合评判

多目标、多准则决策问题中,决策结果的准确性与属性权重的合理性和评价系统的可行度密切相关。分析了主观赋权法、客观赋权法的优缺点, 提出了基于优化的组合赋权方法。该方法应用序列二次优化方法求解组合权向量,使最终的组合权向量与专家统计评分法、层次分析法、信息熵法、变异系数法这四种单一的主客观赋权方法相似度最高。将这种组合赋权方式与模糊综合评价法结合应用于秦皇岛至温州电厂航线散装运煤船方案决策分析,并与灰色关联评价法结果比较,决策结果证明该综合方法能合理、客观的给出排序方案,同时也能推广应用于船舶与海洋工程决策的相关领域。

Application of Optimum Combination Weighting Method in Fuzzy Synthetic Evaluation of Shipform Assessment

The ranking results of multi-attribute decision is closely related to the weight vector. The advantages and disadvantages of subjective weighting method and objective weighting method are analyzed and a new combination weighting method is proposed. In this method, the sequential quadratic optimization method is used to ensure that the ultimate weight vector has a highest degree of similarity with the four subjective and objective weighting methods. Then, combined this weighting method with fuzzy comprehensive evaluation and applied to bulk collier decision. The results, compared with the grey correlation evaluation method show that this optician combination weighting method is explainable, at the same time, using of objective information and taking into account the subjective preferences of the experts make the decision-making programs more reasonable and credible. This comprehensive approach can promoted to the related areas of the ship-form assessment.