Definition
An event is a basic unit of information in streaming data. An event pattern is a combination of events correlated over time. Event pattern detection is an important activity in complex event processing. In this setting, the matches to the event patterns are referred to as complex events.
Historical Background
In the early 1990s, a set of pioneering work in event systems, such as SNOOP [3] and ODE [8], set out to define query languages for expressing event patterns. In these proposals, the data model for expressing events is not fixed. More recently, the approaches proposed by Cayuga [1,5,6] and SASE [14] for event pattern detection align more closely to relational query processing, in that each event is modeled by a relational schema, and some of the operators for expressing event pattern queries are drawn from relational algebra. Regardless of the data model for events, these systems all use some...
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Hong, M., Demers, A., Gehrke, J., Riedewald, M. (2009). Event and Pattern Detection over Streams. In: LIU, L., ÖZSU, M.T. (eds) Encyclopedia of Database Systems. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-39940-9_155
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DOI: https://doi.org/10.1007/978-0-387-39940-9_155
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