CRANV2
Aslib Cranfield Research Project: Factors Determining the Performance of Indexing Systems: Volume 2
Methods for presentation of 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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FIGURE 3.12P PLOT OF RECALL AND FALLOL,q" AS FIGURE 3. 5P
SHOWING 'MEASURE OF MERIT" CURVES
"100,, .......... [OCRerr] "
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20 40 60 80 100
' [OCRerr] PRECISION
FIGURE 3.13P PLOT OF RECALL AND PRECISION AS FIGURE 3.4P
SHOWING 'Q' CURVES
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