基于熵权与专家经验综合定权的DLG产品质量的模糊综合评价

Fuzzy Synthetic Evaluation for DLG Product Quality Based on A Synthetic Weighting Method of Entropy Weighting and Expert's Experience

在数字地图产品的模糊综合评价中,各评价因素的权重常根据专家经验给定的,这样具有相当程度的主观性,给评价结果的可靠性带来影响。采用熵值与专家经验综合定权的方法,利用升岭形分布确定隶属函数的方法对某DLG产品质量进行了模糊综合评价。通过实例的对比分析,所提方法不仅克服了以往的经验确定权重人为因素的影响,而且减少了基于熵权法确定的指标权重完全是根据数据之间的关系而与实际情况相差较大的影响,评价结果更可靠。

The weight of every evaluation factor is always identified by expert＇s experience in the field of fuzzy synthetic evaluation for DLG products, because of a certain level of subjectivity, it will have an affect on the reliability of the evaluation results. The paper adopt a synthetic weighting method of entropy weight and the expert＇s experience, and make a fuzzy synthetic evaluation of a kind of DLG product quality by the method which suhordinate function is determined by liters ridge distribution. After analysis of the example, not only can the proposed method overcome the influence of artificial factors determined by the former experience, but also can reduce the influence of large difference between facts and data relationship which index weight is totally determined by entropy weighting method. The evaluation result is more reliable.