在预测领域，灰色系统理论使用的是GM(1,1)模型。
GM (1, 1) model of Grey System Theory is used in prediction realm.
并进行了实证研究，提供了灰色系统理论在大型基础设施决策中的应用方法。
And by demonstration reach, gives the method of application of Grey Theory in large infrastructure projects decision-making.
并运用灰色系统理论的关联度分析方法进行了分析和计算。
The analysis and calculation were also made by the correlation method of Grey system theory.
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