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上下文感知计算中的时序表示与推理方法研究

Research on temporal representation and reasoning for context-aware computing
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摘要 分析了基于本体论的上下文建模方法,对现有上下文本体进行了分类和比较,并针对其在时序表示方面存在的问题,提出了基于资源描述框架(RDF)具体化的上下文时序信息表示方法,扩展了上下文本体的描述能力。同时针对上下文感知中的时序推理问题,提出了一个持续时间推理算法;另外还通过整合Allen区间代数和本体推理实现了时序关系推理。最后通过实验验证了上述两种时序推理方法的效率。 Ontology-based context modeling was analyzed and the existing context ontologies were classified and compared. To address the problems in temporal representation, an approach based on the resource description framework reification was presented to depict temporal properties of context so that the description capability of context ontology was improved. A duration reasoning algorithm was also proposed for context-aware computing. In addition, temporal relation reasoning was implemented by integrating the Allen interval algebra and ontology-based reasoning. Finally, the efficiency of the proposed temporal reasoning method was verified by experiment.
作者 刘栋 孟祥武 陈俊亮
机构地区 北京邮电大学网络与交换技术国家重点实验室
出处 《高技术通讯》 EI CAS CSCD 北大核心 2009年第4期342-347,共6页 Chinese High Technology Letters
基金 国家自然科学基金(60432010) 973计划(2007CB307103) 国家科技支撑计划(2006BAH02A11)资助项目
关键词 上下文建模 本体论 上下文推理 时序推理 区间代数 context modeling, ontology, context reasoning, temporal reasoning, interval algebra
分类号 TP18 [自动化与计算机技术—控制理论与控制工程] TN792 [电子电信—电路与系统]
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参考文献14

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高技术通讯
2009年 第4期

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