中国民航大学学报

• 基础研究 • 上一篇    

改进的模糊粗糙集模型

陶志,潘丽平,何丹峰   

  1. (中国民航大学理学院,天津300300)
  • 收稿日期:2016-12-07 修回日期:2017-02-22 出版日期:2017-10-25 发布日期:2017-12-14
  • 作者简介:陶志(1963—),男,辽宁沈阳人,教授,博士,研究方向为复杂系统建模、粗糙集理论及其应用等.
  • 基金资助:
    国家自然科学基金项目(60672178);中国民航大学科研基金项目(2010kys01)

Improved fuzzy rough set model

TAO Zhi, PAN Liping, HE Danfeng   

  1. (College of Science, CAUC, Tianjin 300300, China)
  • Received:2016-12-07 Revised:2017-02-22 Online:2017-10-25 Published:2017-12-14

摘要: 模糊粗糙集模型是对经典粗糙集模型的扩充,然而却有其不足之处。本研究提出的改进的模糊粗糙集模型,是建立在一般模糊粗糙集模型基础之上,将一个论域扩充成两个论域,同时重新定义了模糊粗糙集合的隶属函数,从而有效提高了新模型的粗糙近似精度和应用范围。理论分析和实例计算均证明了新模型的有效性和实用性。

关键词: 粗糙集, 模糊集, 模糊关系, 模糊粗糙集模型

Abstract: Fuzzy rough set model is a generalization of classical rough set model. However, it has its own defects and shortcomings. An improved fuzzy rough set model is established on the fuzzy rough set model. One domain is expanded into two domains, and the membership function of fuzzy rough set is redefined. Therefore, the new model's rough approximation accuracy and application range are effectively improved. This new model is proved to be effective and practical by theory and case analysis.

Key words: rough set, fuzzy set, fuzzy relation, fuzzy rough set model

中图分类号: