Models decay silently as the world shifts, and 'monitor for drift' is too vague. The signal is the actual statistical methods and distinguishing data drift you can detect without labels from concept drift you often cannot.
Updated Aug 2026 · Grounded in real Applied AI Engineer interview loops and written to a senior-engineer editorial bar.
Models decay silently as the world shifts, and 'monitor for drift' is too vague. The signal is the actual statistical methods and distinguishing data drift you can detect without labels from concept drift you often cannot.
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