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《山东大学学报(理学版)》 ›› 2023, Vol. 58 ›› Issue (5): 10-16.doi: 10.6040/j.issn.1671-9352.0.2022.348

• • 上一篇    

基于模糊信息系统的模糊β-覆盖粗糙集模型

吴凡,孔祥智*   

  1. 江南大学理学院, 江苏 无锡 214122
  • 发布日期:2023-05-15
  • 作者简介:吴凡(1998— ),女,硕士研究生,研究方向为模糊数学与代数学. E-mail:6211204013@stu.jiangnan.edu.com*通信作者简介:孔祥智(1971— ),男,博士,教授,研究方向为模糊数学与代数学. E-mail:xiangzhikong@jiangnan.edu.cn

Fuzzy β-covering rough set model based on fuzzy information system

WU Fan, KONG Xiangzhi*   

  1. School of Science, Jiangnan University, Wuxi 214122, Jiangsu, China
  • Published:2023-05-15

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摘要： 用模糊互补β-邻域族的概念,在模糊信息系统的基础上提出了一种新型的模糊β-覆盖粗糙集模型,并结合属性约简与模糊映射研究新模型的性质。相较于前人的模型,新模型增大了下近似值并减小了上近似值,更加精确了上、下近似值,减小了属性约简带来的误差。

关键词: 模糊β-覆盖, 模糊β-邻域, 模糊粗糙集, 模糊信息系统

Abstract: Based on fuzzy information systems, a novel fuzzy β-covering rough set model is proposed by using the concept of fuzzy complement β-neighborhood family. The properties of the new model are studied by combining attribute reduction and fuzzy mapping. Compared with previous models, the new model increases the lower approximation value and decreases the upper approximation value, thereby making more accurate and reducing the error caused by attribute reduction.

Key words: fuzzy β-covering, fuzzy β-neighborhood, fuzzy rough set, fuzzy information system

中图分类号: 

  • O159
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