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《山东大学学报(理学版)》 ›› 2020, Vol. 55 ›› Issue (5): 13-21.doi: 10.6040/j.issn.1671-9352.c.2020.005

• • 上一篇    

基于属性粒化的近似概念分析及规则提取

贺晓丽1,2,折延宏1,2   

  1. 1.西安石油大学理学院, 陕西 西安 710065;2.西北大学概念认知与智能研究中心, 陕西 西安 710127
  • 发布日期:2020-05-06
  • 作者简介:贺晓丽(1982— ),女,博士,副教授,研究方向为形式概念分析、粗糙集理论、粒计算等. E-mail:hexl@xsyu.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(61976244,11801440,61772021);陕西省创新人才推进计划——青年科技新星资助项目(2017KJXX-60);陕西省自然科学基金资助项目(19JQ-816);陕西省教育厅科研计划资助项目(19JK0653)

Approximate concept and rule acquisition based on attribute granularity

HE Xiao-li1,2, SHE Yan-hong1,2   

  1. 1. College of Science, Xian Shiyou University, Xian 710065, Shaanxi, China;
    2. Institute of Concepts, Cognition and Intelligence, Northwest University, Xian 710127, Shaanxi, China
  • Published:2020-05-06

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摘要： 将属性粒化思想引入到不完备形式概念分析之中。首先,借助于粒度树和截集,研究了不同粒度下近似概念之间的内在联系,其次,研究了粒化前后不完备决策形式背景中近似决策规则之间的关系,最后,在不完备决策形式背景中引入了三种协调性,并研究了粒化前后协调性之间的联系。

关键词: 不完备形式背景, 近似概念, 粒度树, 规则提取

Abstract: This paper introduces the idea of attribute granularity into the study of incomplete context. Firstly, by means of granularity trees and cuts, the relationship between approximate concepts at different levels of granularities is investigated. Next, the relationship between approximate decision rules at different levels of granularities in incomplete context is examined. Lastly, three types of consistences are introduced into incomplete context, and the relationship between different types of consistencs at different levels of granularities is also studied.

Key words: incomplete context, approximate concept, granularity tree, rule acquisiton

中图分类号: 

  • TP18
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[1] 钱婷,赵思雨,贺晓丽. 基于属性粒度研究决策形式背景的规则提取理论[J]. 《山东大学学报(理学版)》, 2019, 54(10): 113-120.
[2] 李同军,黄家文,吴伟志. 基于相似关系的不完备形式背景属性约简[J]. 山东大学学报（理学版）, 2018, 53(8): 9-16.
[3] 张晓,杨燕燕. 覆盖决策系统的规则提取和置信度保持的属性约简算法[J]. 《山东大学学报(理学版)》, 2018, 53(12): 120-126.
[4] 刘琳,魏玲,钱婷. 决策形式背景中具有置信度的三支规则提取[J]. 山东大学学报（理学版）, 2017, 52(2): 101-110.
[5] 覃丽珍, 李金海, 王扬扬. 基于概念格的知识发现及其在高校就业数据分析中的应用[J]. 山东大学学报（理学版）, 2015, 50(12): 58-64.
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