Preprint
Aug 2026
Keeping the Index Open: The Recommendation-Side Cost of Shared Search and Recommendation
A shared search-and-recommendation index must score new items from features alone because search has no exploration slot. In a public log covering both surfaces over one catalog, $38.6\%$ of held-out query-search impressions show an item never previously shown or visited. For user-cold engagements, the feature-based to...
Theodore Rogers, Joseph Standerfer, D. Timoshenko et al.
· 0 citations