JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) ›› 2020, Vol. 55 ›› Issue (3): 89-97.doi: 10.6040/j.issn.1671-9352.1.2019.187

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Research on local double relative quantitative decision-theoretic rough set for incomplete ordered information system

LIN Yan-li, LIU Xiao-dong*   

  1. College of Science, Dalian Maritime University, Dalian 116026, Liaoning, China
  • Published:2020-03-27

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Abstract: This study focuses on the incomplete order information system based on the double relative quantitative rough set and the local decision-theoretic rough set. Two kinds of local double relative quantitative decision-theoretic rough set(LDrq-DTRS)models are established, and their inclusion relationships in terms of positive, negative and boundary regions are discussed. In addition, the inner relationship between LDrq-DTRS and local rough set is also examined. Finally, the related properties are verified by employing a numerical experiments under different parameters.

Key words: local decision-theoretic rough set, double relative quantitative, characteristic dominance relation, incomplete ordered information system

CLC Number: 

  • TP181
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