Collection

Tag: query-expansion

J. J. Rocchio and Relevance Feedback: Teaching a Search Engine from User Judgments

Rocchio relevance feedback showed how a search system could move a query toward documents a user judged relevant and away from those judged nonrelevant.

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Relevance Models and Query Expansion: Searching Beyond the Words the User Typed

Query expansion evolved from hand-built thesauri and feedback into probabilistic relevance models that estimate which words are likely to characterize the user's hidden information need.

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