CRANV2
Aslib Cranfield Research Project: Factors Determining the Performance of Indexing Systems: Volume 2
Main test results
chapter
Cyril Cleverdon
Michael Keen
Cranfield
An investigation supported by a grant to Aslib by the National Science Foundation.
Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government.
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O 1-3, FSg. 4.600T
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/X 1-2. Fig. 4.602T
1, Fig. 4.604T
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% FALLOUT
100
FIGUt[OCRerr]E 4.606P RECAI,L-FALLOUT PLOT SHOWING EFFECT OF CHANGES IN RELEVANCE
ON 42 QUESTIONS WITH 1400 DOCUMENT COLLECTION,
INDEX LANGUAGE I,l.a