应急决策中基于时态知识的不确定性推理  

Uncertain Reasoning Based on Temporal Knowledge in Emergency Decision

作　　者：黄卫东[1] 李轶[1] 

机构地区：[1]南京邮电大学,江苏南京210046

出　　处：《信息与控制》2010年第4期502-506,512,共6页Information and Control

基　　金：国家自然科学基金资助项目(70871061)

摘　　要：针对应急事件中大量的时态不确定性信息,在引入传统区间代数方法的基础上,采用对区间时间断点模糊化处理并设定其取值范围的方法,实现了应急领域不确定时态知识的表达.通过时间区间集合、时态关系集合以及概率指派函数合成后的更新,给出了时态推理下证据合成的解决方案.结合应用算例进行分析,验证了该方案的有效性.A great deal of uncertain temporal information exists in emergency events.For that problem,a representation of uncertain temporal knowledge in emergency domain is realized firstly by introducing the traditional interval algebra method.And it takes the method of applying fuzzy processing to the breakpoints of the time interval and setting their value range.Then,the solution of evidence combination in temporal reasoning is proposed through the renewal of the combination of the time interval set,the temporal relation set and the probability assignment function.Finally,the solution is analyzed combining with an application example,thus the validity of the method is verified.

关 键 词：应急决策 时态知识表示 不确定性推理 

分 类 号：TP182[自动化与计算机技术—控制理论与控制工程]