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主动数据库的时序事件代数 被引量:4

TEMPORAL EVENT ALGEBRA FOR ACTIVE DATABASE SYSTEMS
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摘要 通过引入一元时序算子 ,表达事件之间任意复杂的相对次序关系 ,在此基础上重新定义了描述复合事件的时序事件代数 ,并证明了该事件代数良好的数学性质 .不仅增强了事件描述语言的描述能力 ,也为处理规则执行的合流性提供了新的方法 . By introducing unary temporal operators, any complicated relative sequential relations among events can be modeled. Based on this, a temporal event algebra for modeling composite events is redefined, along with it's mathematical properties being proven. This not only enriches the expressive power of the event language, but also provides a new approach to confluent rule execution in active database systems.
出处 《小型微型计算机系统》 EI CSCD 北大核心 2000年第6期653-656,共4页 Journal of Chinese Computer Systems
基金 国家自然科学基金!(编号 69673 0 15 )
关键词 时序算子 事件代数 主动数据库 数据完整性 Temporal operators Event Event algebra Active database
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  • 7[7]Iakovos Motakis, Carlo Zaniolo. Composite Temporal Events in Active Database Rules: A Logic-Oriented Approach. [C]In: Tok Wang Ling et al. Eds. Proc. Of the Fourth Int'l Conf. On Deductive and Object-Oriented Databases, Singapore: Springer-Verlag, Dec 4-7, 1995. 19~37
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