陈玉金,李续武,邢瑞康.基于证据理论的三支决策模型[J].计算机科学,2018,45(6):241-246, 283
基于证据理论的三支决策模型
Three-way Decisions Model Based on Evidence Theory
投稿时间:2017-04-16  修订日期:2017-08-25
DOI:10.11896/j.issn.1002-137X.2018.06.043
中文关键词:  三支决策模型,决策粗糙集,证据理论,贝叶斯风险决策,信任函数
英文关键词:Three-way decision model,Decision-theoretic rough sets,Evidence theory,Bayes risk decision,Belief function
基金项目:本文受国家自然科学基金(61503407)资助
作者单位E-mail
陈玉金 空军工程大学防空反导学院 西安710051 ivan@mail.dlut.edu.cn 
李续武 空军工程大学防空反导学院 西安710051 fbb19940103@163.com 
邢瑞康 空军工程大学防空反导学院 西安710051  
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中文摘要:
      三支决策模型和证据理论在概念、信息处理方式上存在着互通互补之处。首先,将证据理论基本概念引入到三支决策中,分析其延迟信任区间可能包含的可变语义,分别构建了基于证据理论的确定和可变三支决策模型。然后,通过调节信任系数取值,结合贝叶斯风险分析形成了乐观策略、悲观策略及其相应的决策规则,以满足特定语义环境下的应用需求。最后,通过对防空作战态势评估的风险分析说明了模型的具体应用过程。
英文摘要:
      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 illuminate applications of the proposed model.
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