【Key words】 water resources institutions; techno-material; procurement; weight definition; synthetic evaluation; decision methods
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By analyzing the operating process of different purchase means, the key issue-the decision problem is derived, which is composed of weight definition problem and synthetic evaluation problem.
经过分析各种采购方式的操作过程，导出水利事业单位技术物资采购工作中的关键问题——决策问题，并将决策问题分解为权重确定问题和综合评价问题。
参考来源 - 决策方法在水利事业单位技术物资采购中的应用·2,447,543篇论文数据，部分数据来源于NoteExpress
Based on attribute significance of rough set, sets up objective weight definition models and combined weight definition models based on rough set.
基于粗糙集属性重要性原理，建立了基于粗糙集的客观权重确定模型和主客观综合权重确定权重。
In the comprehensive evaluation of objective specific properties of an object, the weight definition is a puzzling subject of importance, and for a long time no effective solution has been made.
权重确定是综合评价事物客观特性过程中的一个重要难题，长期没有得到有效地解决。
That's my definition of weight.
这也就是重量的定义。
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