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山东大学学报(理学版) ›› 2017, Vol. 52 ›› Issue (2): 101-110.doi: 10.6040/j.issn.1671-9352.0.2016.384

• • 上一篇    

决策形式背景中具有置信度的三支规则提取

刘琳1,魏玲1*,钱婷2   

  1. 1.西北大学数学学院, 陕西 西安 710127;2.西安石油大学理学院, 陕西 西安 710065
  • 收稿日期:2016-08-01 出版日期:2017-02-20 发布日期:2017-01-18
  • 通讯作者: 魏玲(1972— ),女,教授,研究方向为形式概念分析、粗糙集理论、概率论等. E-mail:wl@nwu.edu.cn E-mail:nwu_liulin@163.com
  • 作者简介:刘琳(1992— ),女,硕士,研究方向为形式概念分析、统计学. E-mail:nwu_liulin@163.com
  • 基金资助:
    国家自然科学基金资助项目(11371014,11071281)

Three-way rules extraction in formal decision contexts with confidence

LIU Lin1, WEI Ling1*, QIAN Ting2   

  1. 1. School of Mathematics, Northwest University, Xian 710127, Shaanxi, China;
    2. College of Science, Xian Shiyou University, Xian 710065, Shaanxi, China
  • Received:2016-08-01 Online:2017-02-20 Published:2017-01-18

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。

关键词: 决策形式背景, 三支概念格, 置信度, 规则提取

Abstract: 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.

Key words: confidence, three-way concept lattices, formal decision context, rules extraction

中图分类号: 

  • O29
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