A Method of Linguistic Truth-valued Reasoning in Risk Assessment

摘要：

In the risk assessment, some judgments for the risk factor may not be exactly true (false) or exactly a real number. The truth values of them are often with linguistic hedges. Linguistic hedges of the truth value affect the truth degree of the judgment. In this paper we consider the common linguistic hedges and 18 kinds of linguistic truth values. Based on lattice implication algebra we establish the linguistic truth valued logic which can express both comparable and incomparable truth values. Some properties of disjunction, conjunction, negative and implication operators of linguistic truth-valued propositional logic are found. Then the reasoning method is discussed.

关键词： linguistic truth-valued logic lattice implication algebra risk assessment

作者: Li Zou Xin Liu Yang Xu

作者单位: School of Computer and Information Technology, Liaoning Normal University, Dalian, 116029, P. R. Chi Mathematics College, Liaoning Normal University, Dalian, 116029, P. R. China Intelligent Control Development Center, Southwest Jiaotong University, Cbengdu, Sichuan, 610031, P.

会议类型: 国际会议

会议名称: The 1st International Conference on Risk Analysis and Crisis Response(首届风险分析与危机反应国际学术研讨会)

会议地点: 上海

会议语种:英文

页码: 395-399

在线出版日期: 2007-09-25（万方平台首次上网日期，不代表论文的发表时间）