摘要
这里所讨论的数据不再是具有持久关系的数据集合,而是形成了瞬时的、多重的、持续的、迅速的、时间变化的数据流。由于具有了这些特性,数据流处理现状对数据管理的很多方面提出了新的研究方向。文章着重讨论数据流的查询技术和方法,特别提出了关于传感器采样数据流的查询。最后,介绍应用了数据流查询技术的管道煤气管网数据监测系统,进一步说明由传感器采样数据产生的数据流查询的设计思想和实现方案。
The data we research take the form of instantaneous multiple continuous data stream,rather than persistent stored data set.Because of these new characteristics,several aspects of data management need to be reconsidered in the presence of data streams ,offering a new research direction for us.This paper focuses primarily on the technology and method of query processing,specifically on how to query over sensor data stream.Finally,it introducts the research work in the application of query processing for monitoring the data of pipeline-gas network,showing the data stream querying research project over the sensor data.
出处
《计算机工程与应用》
CSCD
北大核心
2004年第4期208-210,共3页
Computer Engineering and Applications
