CRANV2 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. - 136 - Ioo 90 80 7o 60 J .J O so uJ cr [OCRerr] 4o 3o 2o io .3 [ II X ..... 4. 502T O--- - 4. 302T I: 1 L I '\ I0o o ,o 20 30 40 so 60 70 8o [OCRerr]o too % PP, ECI SION FIGURE 4.506P 8O 3 7O 0 6O -2 so 4o 3o 0 Ix 20 ' \ I0 \×![OCRerr] o IO 20 FIGURE 4.507P SEARCH RULES A and B, 19 QUESTIONS, INDEX LANGUAGE I,l.a (FIGURES 4.502T and 4.302T) i X 4. 503T O- - - 4. 303T I 30 4o so so [OCRerr]o eo eo ioo O/o PP, ECl SION SEARCH RULES, A and B, 17 QUESTIONS, INDEX LANGUAGE 1.6,a (FIGURES 4.503T and 4.3 03T)