复杂事件描述语言事件表达式的研究

Research on Event Expression of Complex Event Description Language

射频识别(RFID,Radio Frequency Identification)技术是物联网的关键技术,物联网系统中分布的阅读器获取的大量原子事件对于商业决策几乎没有价值。为了能从海量的原子事件中挖掘出能够帮助管理者进行决策的具有商业逻辑的复杂事件,引用相对成熟的复杂事件描述语言SASE,在此基础上进行优化,补充了若干事件运算符以提取高级语义事件,并给出其形式化定义和应用实例。实验表明,事件运算符的使用使得事件处理系统能够输出更有实际意义的高级语义事件。

Radio frequency identification technology is the key technology of the internet of things, read from the reader to dig out a large number of atomic events with complex business logic of the event data can help managers make decisions. It has no uniform standard a- bout complex events description language. The SASE event language is a relatively mature complex event description language. The opti- mization based on SASE event language, add a number of high-level event operators to extract semantic events, and give its formal defi- nition and application examples. Experimental results show that the event processing system can output more meaningful high-level se- mantic event while using event operator.