Short-Video Recommendation System

Personalized Video Feed Ranking System Hard · System Design, Machine Learning, Ranking, Recommendation · Social Media · Hints: Multi-stage pipeline, cold-start exploration, streaming features Design a ranking system that delivers a personalized, scrollable stream of short videos to each user. Fetch candidate videos from multiple independent sources in parallel: collaborative filtering, content-based matching (tags/embeddings), trending/popularity fallback, subscriptions…