Sensitivity

Overview

The sensitivity of a monitor is a parameter that defines how far a value must deviate before Sifflet flags it as an anomaly. Choosing the right level of sensitivity helps you balance anomaly detection and noise. Higher sensitivity detects smaller deviations but can increase false positives.

How To

Where to Find It

The Monitor Sensitivity setting is available in the Sifflet Monitor Wizard.

How to Use It

Choosing the right sensitivity can help you align the number of alerts to the importance of your data. If you want to monitor only significant events and not smaller movements, lower the sensitivity to avoid false positive alerts. Conversely, if any slight change in your data is critical, increase the sensitivity to capture it.

The illustrations below show how a higher sensitivity level increases the number of data quality issues detected.

Monitor graph with sensitivity set to Low

Sensitivity: Low

Monitor graph with sensitivity set to High

Sensitivity: High

Best Practices

Set the model sensitivity according to your data criticality.

Data CriticalityRecommended Sensitivity
HighHigh
NormalNormal
LowLow

Did this page help you?