Cranfield experiments

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The Cranfield experiments were computer information retrieval experiments conducted by Cyril W. Cleverdon at Cranfield University in the 1960s, to evaluate the efficiency of indexing systems.[1][2][3]

They represent the prototypical evaluation model of information retrieval systems, and this model has been used in large-scale information retrieval evaluation efforts such as the Text Retrieval Conference (TREC).

See also[edit]


  1. ^ Cleverdon, C. W. (1960). ASLIB Cranfield research project on the comparative efficiency of indexing systems. ASLIB Proceedings, XII, 421-431.
  2. ^ Cleverdon, C. W. (1967). The Cranfield tests on index language devices. Aslib Proceedings, 19(6), 173-194.
  3. ^ Cleverdon, C. W., & Keen, E. M. (1966). Factors determining the performance of indexing systems. Vol. 1: Design, Vol. 2: Results. Cranfield, UK: Aslib Cranfield Research Project.

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