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中文摘要：
给出了非三支协调的决策形式背景具有置信度的三支规则提取方法。首先定义了规则置信度,以此为基础给出了概率分布并结合实例阐明了利用具有置信度的规则做决策的可行性。最后利用置信度,研究了三支协调的决策形式背景非冗余规则的性质,并给出了属性三支协调下非冗余规则的充要条件。
英文摘要：
A method of rules extraction based on the three-way concept lattice in inconsistent three-way formal decision context is put forward. Firstly,the confidence of rules is defined and the probability-distribution is given. And an example is used to demonstrate its feasibility and effectiveness in decision-making. Then several properties of irredundant three-way rules are presented in three-way consistent formal decision context. Finally,using of confidence the necessary and sufficient condition of irredundant rules is discussed in attribute-induced three-way consistent formal decision context.
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