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arXiv 2103.00831cs.LGstat.CO
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使用统计杠杆进行流式业务流程事件的在线异常检测

Online anomaly detection using statistical leverage for streaming business process events

Ulsan National Institute of Science and Technology (UNIST)(蔚山国家科学技术研究所)

Jonghyeon Ko, Marco Comuzzi

摘要:

虽然最近在文献中出现了几种用于在离线设置中检测事件日志中的跟踪级异常的技术,但目前缺乏在线设置的这种技术。在线设置中的事件日志异常检测对于发现流程执行中的异常至关重要,一旦异常发生,就可以立即采取早期纠正措施。本文介绍了一种新的方法,事件日志异常检测的事件流,使用统计杠杆。杠杆作用已被广泛用于统计,以制定措施,以确定离群值,它已在本文中的事件流数据的特定场景。所提出的方法已在人工和真实事件流上进行了评估。

英文摘要:

While several techniques for detecting trace-level anomalies in event logs in offline settings have appeared recently in the literature, such techniques are currently lacking for online settings. Event log anomaly detection in online settings can be crucial for discovering anomalies in process execution as soon as they occur and, consequently, allowing to promptly take early corrective actions. This paper describes a novel approach to event log anomaly detection on event streams that uses statistical leverage. Leverage has been used extensively in statistics to develop measures to identify outliers and it has been adapted in this paper to the specific scenario of event stream data. The proposed approach has been evaluated on both artificial and real event streams.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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