Abstract: Geomagnetic map suitability evaluation involves a large number of properties. It is meaningful to analyze the change of attribute weights which can impact on evaluation results. It has abstracted multiple attribute decision making problem from the geomagnetic map suitability evaluation. Firstly, the common geomagnetic map attributes and the weighted sum model used for alternatives ranking are given. Secondly, the change scope of weights are researched when maintained the order result unchanged. Thirdly, sensitivity analysis is performed when the changes of attribute weights and the change intervals are deduced by quantitative analysis. Finally, combining with an instance, the change scope of weights and the most sensitivity attribute are obtained, which provide a reference for decision makers.

Key words: sensitivity analysis, multiple attribute decision making, reversed, suitability

摘要： 地磁图适配性评价涉及较多的地磁图属性，深入分析属性权重变化对适配性评价结果的影响很有意义。将地磁图的适配性评价抽象成多属性决策问题，首先给出常见的地磁图属性以及用于方案排序的线性加权模型，在此基础上研究排序结果不变时属性权重的变化范围以及属性权重发生变动情形下的灵敏度问题，定量推导出使得方案排序翻转的地磁图属性权重变化区间。通过一则实例求解属性权重变化范围和属性权重的灵敏度，得到对决策排序结果最敏感的属性，计算结果可为决策者提供一定参考。

关键词: 灵敏度分析, 多属性决策, 排序翻转, 适配性