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.
96 -
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95
90
85
80
75
70
65
60
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30
25
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F I j
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/, 221 questions (Fig.4.100T)
O 35 questions (Fig. 4.110T)
A 42 questions (Fig. 4.120T)
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FIGURE 4. 130P
PLOT OF RESULTS FOR INDEX LANGUAGE I. 1. a FOI[OCRerr]
221 QUESTIONS, 35 QUESTIONS AND 42 QUESTIONS ON
1400 DOCUMENT COLLECTION