Topic: query expansion

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  • Google's Jeff Dean: AI Search Still Needs Classic Ranking
    February 18, 2026

    Google's Jeff Dean: AI Search Still Needs Classic Ranking

    Google's AI search is built on its classic infrastructure, using traditional crawling, indexing, and ranking to first filter web documents before AI synthesizes answers. The system employs a staged "retrieve, rerank, and synthesize" pipeline, where content must pass through established ranking th...

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  • Google AI Overviews Shrink When Users Ignore Them
    January 9, 2026

    Google AI Overviews Shrink When Users Ignore Them

    Google's AI Overviews are dynamically shown or hidden based on real-time user engagement, not by default, as the system learns from metrics like clicks to determine if a summary provides value for a specific query. The system often expands searches "under the hood" by issuing additional internal ...

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Related Topics

user intent (1) search evolution (1) Personalization (1) semantic matching (1) ai overviews (1) compute efficiency (1) user engagement (1) ai search architecture (1)