Furthermore, as window join is one of the highest cost operations of continuous queries, window join optimization will notably improve a DSMS performance.
提出适合频繁增删查询环境下的数据流窗口连接优化算法。
Based on comment of DSMS model, various frequent pattern mining algorithms are analyzed thoroughly and their characteristics and limitation are pointed out in this paper.
在论述数据流管理系统模型的基础上，深入分析了国内外的各种频繁模式挖掘算法，并指出这些算法的特点及其局限性。
DSMS is a common model, which adopts window mechanics, continuous query and many optimizing strategy to online analyzing and disposing real-time data quickly and efficiently.
数据流管理系统提出了一种通用结构模型，它采用窗口机制，连续查询以及相应的优化策略迅速高效地对实时数据进行在线分析处理。
The interface of ca and DSMS integrating with various hospital information systems (such as RIS, HIS and PACS) was realized and the security verification of system information was completed.
同时实现了与现有各种医院信息系统(如ris,HIS和PACS)的接口与集成，并完成了对其系统信息的安全验证。
The simulation results show that the presented DSMS possesses the capability to perform wide-area real-time monitoring and analysis on the dynamic processes occurred in practical power systems.
试验结果表明，该系统具备了对实际电网动态过程进行广域实时监测与分析的能力。
The simulation results show that the presented DSMS possesses the capability to perform wide-area real-time monitoring and analysis on the dynamic processes occurred in practical power systems.
试验结果表明，该系统具备了对实际电网动态过程进行广域实时监测与分析的能力。
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