Shawn NgTopic
Recommendation Systems
2 deep dives tagged Recommendation Systems — real systems, real numbers, no hand-waving.
Recommendation Is Vector Search With a Query You Never Typed
Search and recommendation run the same engine: encode a query as a vector, return the nearest items. Only the query's origin differs. Here is the geometry.
How YouTube Decides What You Watch
How YouTube's recommendation system works: two-stage retrieval and ranking, watch-time prediction, and multi-task MMoE models, per the published research.