Roughness bounds in rough set operations

  • Authors:

  • Yingjie Yang;Robert John

  • Affiliations:

  • Centre for Computational Intelligence, School of Computing, De Montfort University, The Gateway, Leicester LE1 9BH, United Kingdom;Centre for Computational Intelligence, School of Computing, De Montfort University, The Gateway, Leicester LE1 9BH, United Kingdom

  • Venue:
  • Information Sciences: an International Journal
  • Year:
  • 2006

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Abstract

This paper presents some roughness bounds for rough set operations. The results show that a bound of the set operation can be determined from their operand's roughnesses. We prove also that this bound is not determined under some special operations.