J4 ›› 2011, Vol. 46 ›› Issue (8): 110-113.

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A one-direction S-fuzzy rough set and its application

LU Xiao-yun1, YANG Yong 2   

  1. 1. Department of Computer Science, Qinghai Normal University, Xining 810008, Qinghai,China;
    2. College of Mathematics and Information Science, Northwest Normal University, Lanzhou 730070, Gansu, China
  • Received:2010-12-09 Online:2011-08-20 Published:2011-09-08


A one-direction fuzzy rough set is proposed, and its general structure and the concept are given by the theory of Dubois fuzzy rough set and the concept of the dynamic fuzzy set. Then, the relationships between a one-direction S-fuzzy rough set and fuzzy rough set are analyzed, and properties and its application of one-direction S-fuzzy rough set are presented.

Key words:  dynamic fuzzy set; fuzzy elementary transfers; Dubois fuzzy rough set; one-direction S-fuzzy rough set

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