Coach note

Interviewers ask this kind of question to surface how you think, not what you remember. The strongest answers are specific, calmly told, and end on what changed.

ML system design · Training data pipeline

Design a training data pipeline for a recommendation model that needs to incorporate user interactions from the last 24 hours. How do you handle late-arriving events and ensure reproducibility?

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Design a training data pipeline for a recommendation model that needs to incorporate user interactions from the last 24 hours. How do you handle late-arriving events and ensure reproducibility?

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