Basic Performance Measures for Information Retrieval

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Precision and recall and their combinations are the most common measures for evaluating the performance of information retrieval systems. These measures require a collection of documents, a query, and a set of relevance judgments.


Mark a retrieved item as relevant or irrelevant by clicking it and watch how measures change. Relevant items are denoted by a light purple background when clicked. Mouseover the measures to see their definitions.


Contributed by: Giovanna Roda (March 2011)
Open content licensed under CC BY-NC-SA




"Information Retrieval" on Wikipedia.

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