It is difficult to use the decision tree method to find the sub-optimal solution, not to mention the alternative ranking.
利用传统的决策树方法，无法确定一个次优方案，对所有方案进行排序也很难。
In some situations when the ranking difference between alternative decisions is too narrow a good strategy is to refine the scenarios into sub-scenarios and re-apply the method.
当候选方案的得分区别不大时，一个好的策略是把场景深化为子场景，并在子场景上应用该方法。
Aiming at extreme alternative in contractor selection of ship equipment maintenance, the method of compensating an alternative the overall ranking score for its individual attribute values is used.
针对舰船装备维修承包商选择中出现的极端选项问题，尝试综合承包商个别属性评价值和整体评价值的方法来解决此问题。
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