Relevance (information Retrieval) - Types

Types

Relevance most commonly refers to topical relevance or aboutness, i.e. to what extent the topic of a result matches the topic of the query or information need. Relevance can also be interpreted more broadly, referring to generally how "good" a retrieved result is with regard to the information need. The latter definition of relevance, sometimes referred to as user relevance, encompasses topical relevance and possibly other concerns of the user such as timeliness, authority or novelty of the result.

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