This table provides detailed statistical distance metrics between baseline and target distributions for each feature.
Feature | Type | KL Divergence | JS Distance | Wasserstein Distance | Hellinger Distance | Shift Severity |
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Metric | Range | Minor Shift | Moderate Shift | Significant Shift | Description |
---|---|---|---|---|---|
KL Divergence | [0, ∞) | 0 - 0.5 | 0.5 - 2.0 | > 2.0 | Measures information gain when updating from baseline to target distribution |
JS Distance | [0, 1] | 0 - 0.2 | 0.2 - 0.4 | > 0.4 | Symmetric measure of similarity between distributions |
Wasserstein | [0, ∞) | 0 - 0.1 | 0.1 - 0.3 | > 0.3 | Earth mover's distance between distributions |
Hellinger | [0, 1] | 0 - 0.2 | 0.2 - 0.5 | > 0.5 | Probabilistic measure of distribution similarity |