Task

Ad Hoc Retrieval

Canonical ID https://id.searchplex.net/ad-hoc-retrieval/

A retrieval task in which new queries or topics are run against a known, fixed collection to find relevant items.

Also called

Scope

Ad hoc retrieval is the classic TREC-style retrieval task: the document collection is known in advance, but the information needs are not. It is distinct from federated search, entity search, routing, and interactive search.

Broader

Related

Not equivalent to

  • Ad Hoc Retrieval is not Entity Search. Ad hoc retrieval is usually framed around retrieving documents or passages for a topic; entity search targets entities or entity-oriented information.
  • Ad Hoc Retrieval is not Federated Search. Ad hoc retrieval assumes a known collection; federated search searches across multiple sources or search services and must combine their results.
  • Ad Hoc Retrieval is not Interactive Search. Ad hoc retrieval can be evaluated as a single-shot batch task; interactive search emphasizes user-system interaction across a search session.

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ID