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不确定时态信息的粒度建模及其时态关系研究

Research on Granularity Modeling and Temporal Relations of Uncertain Temporal Information
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摘要 从自然语言的不确定性语义出发,研究时态信息的不确定性问题.提出不确定时间点、不确定时间区间的六元组粒度模型;通过构造评价函数,给出了不确定时态粒点的语义可信度计算方法;并对不确定时态进行泛化处理,进而定性的讨论了其时态关系,对其中复杂交叠的时态关系进行定量计算并证明计算的正确性和完备性,从而将不确定性问题转化为可计算问题. The uncertainty of temporal information have been explored from the viewpoint of uncertain semantics of natural language.The six-tuple granularity models have been proposed to specify uncertain temporal points and uncertain temporal intervals. On onehand,the evaluation function was introduced to estimate the availability of uncertain temporal granular points. On the other hand,therelations of uncertain temporal were discussed qualitatively after it's generalization, and the complex and overlapping temporal relationswere calculated in a quantitative manner. Furthermore, the validity and completeness of the calculation were proved, which converteduncertainty problems to computable problems.
出处 《小型微型计算机系统》 CSCD 北大核心 2015年第7期1515-1520,共6页 Journal of Chinese Computer Systems
基金 国家自然科学基金项目(60970044)资助 广东省自然科学基金项目(S2011040004281 S2013010014457)资助
关键词 不确定 时态语义 时态粒度 时态关系 uncertain temporal semantic temporal granularity temporal relations
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