High-Performance Complex Event Processing Over Streams

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Executive Summary

In this paper, the authors present the design, implementation, and evaluation of a system that executes complex event queries over real-time streams of RFID readings encoded as events. These complex event queries filter and correlate events to match specific patterns, and transform the relevant events into new composite events for the use of external monitoring applications. Stream-based execution of these queries enables time-critical actions to be taken in environments such as supply chain management, surveillance and facility management, healthcare, etc. They first propose a complex event language that significantly extends existing event languages to meet the needs of a range of RFID-enabled monitoring applications.

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