System Design · OpenAI · Medium
1. What Is a Nearby POI Service? A nearby POI (Point of Interest) service enables people to find restaurants, fuel stations, parks, hospitals, and other locations close to a specified position. Services such as Yelp, Foursquare, Google Maps, and Uber's place picker depend on a backend that catalogs millions of places and responds to questions like “what is near me?” within milliseconds. Although the user-facing interaction is simple, the underlying challenge is geospatial…
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