CRANV2
Aslib Cranfield Research Project: Factors Determining the Performance of Indexing Systems: Volume 2
Simulated ranking and document output cut-off
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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ORDER
[OCRerr]DEX [OCRerr]DEX
LANGUAGE ORDER LANGUAGE
1 I-3 (I) 25 IV-4
2 s -13 (2) 26 Iv-3
3 I-2 (2) 27 In-3
4 1-7 (.! I) 28 II1-4
5 S-11 (6) 29 IV-2 .
6 I-1 (5) 30 III-5
7 S-14 (8) 31 III-6
8 S -9 (4) 32 IV-1
9 S-8 (10) 33 S-1
10 I-S (9) 34 S-4
11 S-6 (7) 35 II-15
12 S-8 (12) 36 II-9
13 S-12 (13) 37 II-13
14 S-10 (16) 38 II-12
15 I-5 (14) 39 II-8
16 If-11 . (15) 40 II-5
17 S-3 (18) 41 II-7
18 II -10 (17) 42 II-3
19 III-2 (22} 43 II-14
20 S-5 (19) 44 II-6
21 S-2 (24) 45 II-4
22 III-I (21) 46 II-2
23 I-9 (23) 47 II-1
24 S-7 (20)
(26)
(25)
(27)
(29)
(28)
(30)
(31)
(32)
(33)
(34
(35
(36
(37
(39
(381
(40)
(41 )
(42)
(43)
(45}
(44)
(46)
(47}
FIGURE 5.18T
ORDER OF EFFICIENCY BASED ON NORMALISED
RECALL FOR CRANFIELD AND SMART INDEX
LANGUAGES CALCULATED BY AVERAGE OF
RATIOS (FIGURES IN BRACKETS REPRESENT
ORDER WHEN CALCULATED BY AVERAGE OF
NUMBERS AS IN FIG. 5.14T)