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The AIOps library for removing automatically failure-unrelated metrics

https://github.com/ai4sre/metricsifter

by y_uuki • 2 years ago

1 1 2 years ago

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y_uuki• 2 years ago

MetricSifter is a feature reduction framework designed to accurately identify anomalous metrics caused by faults for enhancing fault localization. Our key insight is that the change point times inside the failure duration are close to each other for the failure-related metrics. MetricSifter detects change points per metric, localizes the time frame with the highest change point density, and excludes metrics with no change points in that time frame. The offline change point detection is implemented by ruptures, and the segmentation of the detected change points is based on kernel density estimation (KDE).

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