System Design · Meta · Hard
Question 1: Real-time location-aware suggestions for a mobile app Build a real-time recommender for a smartphone app that proposes nearby places while the phone owner is moving. The service should return relevant venues such as restaurants, shops, or attractions near the user's current position or a predicted future position. Cover these design points: problem scoping, candidate generation, ranking, feature choices, training data collection, online prediction, latency…
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