System Design · LinkedIn · Medium
You are designing a social media feed service. Your task is to propose a system architecture that materializes each user’s timeline by merging content from the accounts they follow, ordered by a ranking model rather than a simple chronological sort. Core behavior Feed generation. For a given user, collect all recent posts from every account the user follows. Rank these posts with a scoring function and return the top results. The design of the ranking model itself is out of…
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