%0 Journal Article
%T A Deterministic QoS Guaranteeing Approach for Data Stream Processing<br>数据流处理中确定性QoS的保证方法
%A WUShan-Shan YU Ge LUYan-Fei GUYu LIXiao-Jing
%A <br>武珊珊
%A 于 戈
%A 吕雁飞
%A 谷 峪
%A 李晓静
%J 软件学报
%D 2008
%I 
%X Different from the traditional best-effort query service providing,the issue of deterministic QoS guarantee for data stream processing is discussed.Based on the theory of network calculus,an approach of QoS modeling and QoS guaranteeing for data stream processing is proposed.Before system running,the schedulability of all the queries with their QoS requirements satisfied simultaneously is verified.During run-time,service curves representing respective QoS requirements are allocated to each query admitted by QoS schedulability verification, in order to guarantee the expected QoS requirements.Moreover,QoS-guaranteeing batch scheduling and query sharing are extended to improve the query processing efficiency.Finally,experimental results show that the proposed approach offers deterministic QoS guarantee to continuous queries over data streams efficiently.
%K data stream
%K deterministic QoS guaranteeing
%K task scheduling
%K network calculus<br>数据流
%K 确定性QoS保证
%K 任务调度
%K 网络演算
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=7735F413D429542E610B3D6AC0D5EC59&aid=152513BAD02A7D746D4D2FB53E64207B&yid=67289AFF6305E306&vid=2A8D03AD8076A2E3&iid=5D311CA918CA9A03&sid=ADC771006BF99B57&eid=09D37D27C104E85E&journal_id=1000-9825&journal_name=软件学报&referenced_num=1&reference_num=15