Search, ads, and recommendation: accepted in review but not delivered (1)

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These are existing review acceptances without a current catalog entry or a documented cost-based disposition. Not all items have user authorization for implementation or have passed the current cost gate individually; this is not an automatic implementation queue. Entries are ordered by paper ID, descending.

This round explicitly labels any full experiments confirmed as too expensive to reproduce. Other items need cost and scope assessment before implementation is accepted.

ID / Paper	Disposition this round	Priority-institution check	Rationale from the previous review
2610.07810 SIFT: Search Intent-to-Filter Transformer for Multi-Task Personalized Filter Ranking at Airbnb	Requires cost or scope assessment, or delivery; not automatically queued	Not independently verified this round; not ruled out	Review passed, pending implementation and public validation of the core algorithm. SIFT meets the threshold through randomized assignment by identity and online evidence for hotel expansion. The number of people clicking filters increased by +20%; the +0.03% change in ordinary bookings was not significant. Uncancelled marketplace bookings for hotel expansion increased by +0.76%. Original journey, filter, and capacity labels were not released. Acceptance for future implementation does not imply implementation.

See reconciliation.json for entry pointers, titles, and current status.