How Retrieval Works in Modern Ranking Systemsshaped.ai 1 pointsemi_sentient10 months ago1 commentSaveHideCopy link On HNComments−semi_sentientOP10moRetrieval 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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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.