Your question is End-to-End MLOps for Recommendations. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
How would you design an end-to-end MLOps system for hotel recommendations on Booking.com, including training, deployment, monitoring, and retraining?
Explain the architecture, data and feature pipelines, model lifecycle, online and batch serving choices, evaluation strategy, and operational safeguards. State the scale assumptions and clarifying questions you would require before finalizing the design.