Computer Science ›› 2018, Vol. 45 ›› Issue (6): 241-246.doi: 10.11896/j.issn.1002-137X.2018.06.043

• Artificial Intelligence • Previous Articles     Next Articles

Three-way Decisions Model Based on Evidence Theory

CHEN Yu-jin, LI Xu-wu, XING Rui-kang   

  1. Air and Missile Defense College,Air-force Engineering University,Xi’an 710051,China
  • Received:2017-04-16 Online:2018-06-15 Published:2018-07-24

Abstract: There are similarities in concept and method of information processing between three-way decisions model and evidence theory.First,the evidence theory was introduced into the three-way decisions model and its trust delay interval including variable semantics was analyzed.Second,the certainty three-way decisions model based on evidence theo-ry and the deformable one were established.By adjusting the coefficient of trust values,the strategies based on opti-mism and pessimism semantics were described and the decision rules were derived by combining with the Bayes risk decision,which are able to meet the application requirements of specific cases in reality.Finally,an example of situation evaluation was given to illuminateapplications of the proposed model.

Key words: Bayes risk decision, Belief function, Decision-theoretic rough sets, Evidence theory, Three-way decision model

CLC Number: 

  • TP181
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