How Retrieval Works in Modern Ranking Systems
Posted3 months agoActive3 months ago
shaped.aiTechstory
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Information RetrievalRanking SystemsMachine Learning
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Information Retrieval
Ranking Systems
Machine Learning
The article discusses the anatomy of modern ranking architectures, specifically how retrieval works in these systems, but received little engagement from the HN community.
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Oct 15, 2025 at 11:49 AM EDT
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semi_sentientAuthor
3 months ago
Retrieval is the stage where a ranking system narrows billions of items down to a few hundred candidates, fast enough for real-time use. It’s the least visible but most constrained layer: latency budgets, freshness, and recall all collide here.
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ID: 45594413Type: storyLast synced: 11/17/2025, 10:08:00 AM
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