Models decay silently as the world shifts, and 'monitor for drift' is too vague. What counts is the actual statistical methods and separating data drift you can detect without labels from concept drift you often cannot.
Updated Sep 2026 · Grounded in real GenAI, LLM, and AI/ML engineering interview loops and written to a senior-engineer editorial bar.
Models decay silently as the world shifts, and 'monitor for drift' is too vague. What counts is the actual statistical methods and separating data drift you can detect without labels from concept drift you often cannot.
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