Mining Closed Episodes with Simultaneous Events

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Provided by: Association for Computing Machinery
Topic: Big Data
Format: PDF
Sequential pattern discovery is a well-studied field in data mining. Episodes are sequential patterns describing events that often occur in the vicinity of each other. Episodes can impose restrictions to the order of the events, which makes them a versatile technique for describing complex patterns in the sequence. Most of the research on episodes deals with special cases such as serial, parallel, and injective episodes, while discovering general episodes is understudied. In this paper, the authors extend the definition of an episode in order to be able to represent cases where events often occur simultaneously.
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