CRANV2 Aslib Cranfield Research Project: Factors Determining the Performance of Indexing Systems: Volume 2 Appendix 3A appendix 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. - 284 - Table of Fallout Ratios for a Generality/ Number of 35.0 R-" 5 io I S 3o 35 ]o ] 5 4° 45 5° P 0.5 36.088 73.176 i.o t7.953 35-9o7 53-860 7z.8t3 89.767 3..'o 8.886 17.773 26.658 35-544 44-43° 53.316 62.202 71.o88 79-974 88.860 3.0 5.864 It.727 i7.59, 23-454 29-3t8 35-18. 4i-o45 46-9o8 52-77a 58.636 4.0 4-353 8.705 z3-o57 x7.4o9 2z.76:, 26.114 30.466 34.8*9 39. z71 43.523 5ao 3°446 6.891 zo.337 z3.732 17.238 30°674 24.119 27.565 31.,to 34.456 7-5 2.237 4*473 6.7*o 8.946 it.183 ,3.4;o ,5.656 ,7.893 2o.,3o 22.366 io.o 1.633 3.[OCRerr]264 4-896 6.528 8o16i 9-793 It- 425 13.o57 14.689 *6.32* 13.5 1.269 3.539 3.8o8 5.078 6.347 7o617 8.886 ,o.,55 lio 4[OCRerr]5 $2.694 $5.0 z.o38 3.055 3.083 4o$*I 5.,38 6.,66 7-'93 8o[OCRerr]2, 9.349 $0.276 30.0 o.7:35 $.45* 2-$76 2"903 3,637 4"352 5"°7[OCRerr] 5°8°3 6°528 7°254 35.0 0.544 $.o88 *.632 2.,76 3.730 3.264 3.808 4-353 4-896 5. 440 30.0 O. 433 0.846 *.269 $.693 3.$.6 2.539 2.962 3.385 3.8o8 4-23' 35.o o. 337 o-67 4 * .o to $. 3 47 $.68 4 2.03* 2.3S8 = .694 3[OCRerr]o3, 3.368 4o.o 0.373 0.544 o.816 1.o88 1.36o *.633 [OCRerr].9o4 3.*76 2. 448 z.72o 4[OCRerr].o 0.:[OCRerr]32 o.443 o.665 0-887 *.*o8 t.33o *.553 1.773 I*993 3.3,6 SO.O 0.$85 0.363 0.544 0.735 0-907 $.088 $.369 *. 45[OCRerr]. t.632 *-8[OCRerr]3 55.0 o. I 48 0.297 o. 445 o. 593 o.7 43 0.890 $ .o39 *- *87 *-333 $- 48 4 60°0 o. *St o.3 4[OCRerr] 0.363 O. 48 4 0.60 4 0.735 0.8 46 o.967 [OCRerr].o88 1.3o9 65. o 0.098 o. $95 o.293 o. 3[OCRerr]* o. 488 O. 586 o.68 4 o. 78* 0°879 o. 976 70.0 0.078 0-'55 o.233 o.3'$ 0.389 O. 466 0.544 0.622 o.699 0.777 75-° 0.060 o..2$ o.*81 o.2 4[OCRerr] 0.302 o.363 o.4[OCRerr]3 o.484 o.544 0.6o4 80.0 o.o 45 °-°91 o. *36 O. 181 0.227 o.373 0.357 0-363 o. 408 oe 453 85, 0 O. 033 0.06 4 °'°96 o, * 28 o. i 60 o. *93 o.33 4 o.s 56 0.388 o. 320 90.0 o. 030 o.o 4° 0.060 o.o8* O. 105 o. 13 * O. * 4t O. i 65 O. iS* 0.30 I 93.O 0.01o 0.059 o.o[OCRerr]9 0.038 o.0 48 0.057 o.o67 0.076 0.086 0-095 OOe 0 O. 000 O. 000 0 o 000 0,000 0,000 O. 000 0,000 0. 000 O 000 0 cO00 R-' 55 60 65 7° 75 80 85 9° 95 too P o.5 1.o 3°0 97.746 3.o 64.499 70.363 76.226 82.090 87.953 93.857 99.680 4.0 47.876 52.328 56.58o 60.933 6[OCRerr].385 69.637 73.99° 78.342 82.694 87.047 [OCRerr].o 37.903 4'.3 47 44.793 48-238 5[OCRerr]-684 [OCRerr]5-'3° [OCRerr]8"575 62.o2, 65. 466 68. 953 7-5 34-603 26"839 39°076 3*-3'3 33e549 35.786 38,023 4o.259 4[OCRerr]'496 44,732 1o.o '7°953 $9.585 3,.2,8 33.850 3 4® 483 36.$[OCRerr]4 37.746 29°378 3£.o$o 33o64[OCRerr] ,3.[OCRerr] $3.964 $5.333 $6.5o3 $7.77s 19.o45 30.3** 21.58o 22-850 34-1$9 25-389 $5.o 11.3o4 $2.333 13-359 *4.387 [OCRerr]5- 4$5 16- 44[OCRerr] $7.47° '8" 497 $9"525 3°'553 30.0 7-979 8.705 9.43o $o.155 $Oo88, t,.6o6 13.333 $3-057 '3.782 $4.5°8 35.0 5.984 6.5[OCRerr]8 7.073 7.6[OCRerr]7 8.$6$ 8.7o5 9.249 9-793 *0°337 $0.885 [OCRerr]0. o 4.655 5.o78 5o5Ot [OCRerr].924 6-347 6-770 7-*93 7-6*7 8"04° 8"463 35.0 3.705 4.o41 4.378 4.715 5.053 5.389 5.735 6.o62 6.399 6.736 40.0 3.992 3.264 3.536 3.8o8 4.o8o 4.3[OCRerr]3 4.634 4°896 5.*68 5-44° 45.0 3.438 3.660 a.88[OCRerr] 3.$o3 3.3[OCRerr] 3.546 3.768 3.99o 4-3** 4°433 [OCRerr]o.o [OCRerr]-995 3-'76 3"3[OCRerr]8 2"[OCRerr]39 3"730 3"902 3"083 3-364 3.446 3"627 5[OCRerr]-0 [OCRerr].632 1. 780 le 939 2,o77 3.336 3.37 4 3. 533 3.67$ 3.859 [OCRerr]. 967 60.0 *.33o *.45' $'57z $'693 *'8'3 $-934 2-055 ='$76 2"397 3"418 65.o 1.o74 1.*73 1.369 $.367 1o 46[OCRerr] %.563 1e660 1.758 t.8[OCRerr]5 *-9[OCRerr]3 70.0 0.8[OCRerr] 0.933 $oO10 *.o88 *..66 *.244 1.33* 1-399 1.477 I"554 7[OCRerr].0 0.665 0e735 0.786 0.8 46 0.907 0.967 1.o38 I.o88 *- $ 49 $'209 80.0 0.499 0e544 0.589 0.635 0.680 o.735 0.771 0.8[OCRerr]6 0.86* 0.907 85.o O.3S3 o[OCRerr]384 o. 456 o. 448 O® 480 0.[OCRerr]13 0.[OCRerr]44 O. 576 o.6o8 0.640 9o, o o.[OCRerr]32 0.2 42 0.2 62 o. 282 o. 302 o. 332 o. 3 43 o. 363 o. 383 o o 403 ' 9[OCRerr]-o o. [OCRerr]o5 o.* $5 o. *2 4 o. $3 4 o. $ 43 o. $53 o.,6[OCRerr] o.,72 o. $8t o. [OCRerr]95 :t oo. o o.ooo o.ooo o.ooo o°ooo o°ooo OeO00 0.000 0.000 0°000 0.000