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Flashcard Practice Certified Artificial Intelligence Practitioner - CAIP Multiple Choice

A production fraud model receives standardized transaction amounts, but the serving service recalculates mean and deviation every hour. What risk does this create?

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Hourly scaling will improve fraud detection because recent data is more relevant to current attacks Feature values at inference may no longer match the scale learned during training, causing unstable predictions The model will become unsupervised because standardization is recalculated The issue matters only if transaction amount is the target label

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