一种事件驱动的数据流查询模型  

An Event-driven Query Model over Data Stream

作　　者：谷峪[1] 武珊珊[1] 冯智博[1] 于戈[1] 李芳芳[1] 

机构地区：[1]东北大学信息科学与工程学院,辽宁沈阳110004

出　　处：《小型微型计算机系统》2007年第8期1413-1418,共6页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(60473073;60503036)资助

摘　　要：分析数据流上事件的语义和特点,建立了事件驱动的数据流模型EQM.提出一种具有事件监控,事件定义和事件驱动功能的语言EQL,讨论了事件监控和事件驱动查询的优化算法以及相关的效率问题和实时性.实验表明,该模型在解决数据流上事件相关问题比现有的数据流模型和处理方法有着更好的性能.This paper analyses the event semantic and features over data stream and builds an event-driven data stream model EQM. A query language named EQL with the function of event detection, event definition and event driven is proposed. Also, optimized approaches over event detection and query as well as relative efficiency evaluation and real-time issues are discussed. Experiments show the model would gain better performance than available data stream model and processing approach as far as event-relative problem is concerned.

关 键 词：数据流 事件 查询语言 查询处理 

分 类 号：TP334.7[自动化与计算机技术—计算机系统结构]