On transitive uncertainty mappings

  • Authors:
  • Baoqing Jiang;Keyun Qin;Zheng Pei

  • Affiliations:
  • Institute of Data and Knowledge Engineering, Henan University, Kaifeng, Henan, China;Department of Mathematics, Southwest Jiaotong University, Chengdu, Sichuan, China;School of Mathematics & Computer Science, Xihua University, Chengdu, Sichuan, China

  • Venue:
  • RSKT'07 Proceedings of the 2nd international conference on Rough sets and knowledge technology
  • Year:
  • 2007

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Abstract

This paper is devoted to the discussion of transitive uncertainty mapping in general approximation space. It is proved that the best low-approximation mapping exist if the uncertainty mapping is transitive. Furthermore, the best low-approximation mapping is defined and its properties are discussed.