Computer Science

Computer Science ›› 2018, Vol. 45 ›› Issue (10): 1-5.doi: 10.11896／j.issn.1002-137X.2018.10.001

• CGCKD 2018 •     Next Articles

Generalized Sequential Three-way Decisions Approach Based on Decision-theoretic Rough Sets

YANG Xin1,2, LI Tian-rui1, LIU Dun3, FANG Yu4, WANG Ning5   

  1. School of Information Science and Technology,Southwest Jiaotong University,Chengdu 611756,China 1
    School of Computer Science,Sichuan Technology and Business University,Chengdu 611745,China 2
    School of Economics Management,Southwest Jiaotong University,Chengdu 610031,China 3
    School of Computer Science,Southwest Petroleum University,Chengdu 610500,China 4
    Chongqing Normal University Foreign Trade and Business College,Chongqing 401520,China 5
  • Received:2018-04-17 Online:2018-11-05 Published:2018-11-05

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Abstract: The theory three-way decisions is one of effective approaches to solve the dynamic uncertain problem.Compared to two-way decisions,sequential three-way decisions can address the balance of cost of decision result and cost of decision process effectively when information is insufficient or evidence is inadequate.Based on the study of the multilevel granular structure,theprocessing objects of multiple selections and the diversified cost structure,this paper proposed a generalized sequential three-way decisions model under decision-theoretic rough sets.This model considers se-ven different methods to process objects at each level.Finally,experiments were conducted to analyze the efficiency and performance of seven approaches in the proposed model.

Key words: Cost sensitive, Decision-theoretic rough sets, Multilevel, Sequential three-way decisions

CLC Number: 

  • TP181
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