CT-AI Question 33

Community Discussion

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• Chose A0

  - PSI (Population Stability Index) compares the distribution of a feature between two time periods (or train vs production) and is widely used in MLOps to flag data drift. PSI < 0.1 typically indicates no significant shift, 0.1-0.25 indicates moderate shift, > 0.25 indicates significant shift requiring investigation. The Kolmogorov-Smirnov test is another common drift detector. MAE, R², and F1 are model performance metrics, not drift detectors.