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  • × author_ss:"Fricke, M."
  • × theme_ss:"Retrievalstudien"
  1. Fricke, M.: Measuring recall (1998) 0.01
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    Abstract
    Recall, the proortion of the relevant documents retrieved, is a key indicator of the performance of an information retrieval system. With large information systems, like the WWW, recal is almost impossible to measure or estimate by all standard techniques. Proposes an 'needle hiding' technique for measuring recall under these circumstances. Shows that ranking by relative recall does not have to be isomorphic to ranking by recall and hence the use of relative recall for comparative evaluation might not be entirely sound