CRANV2 Supplementary tests and 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. - 231 - FIGURE 6.10T .Coordination Level 3 Exhaustivity 3 Document Relevance 1-4 Number of Documents in Collection Number of Relevant Documents 198 200 Search Rule A Number of Questions 42 Generality Figure 23.6 Index Documents R ecall Language Retrieved Ratio Rel. Non-rel. Precision Fall-out x y Ratio Ratio I.l.a 132 761 1.2.a 134 837 1.3.a 139 913 1.5.a 144 1613 1.6.a 151 1785 I. 7. a 143 989 I. 8. a 146 1081 1.9.a 163 2034 66 7% 67 7% 70 2% 72 7% 76 3% 72 2% 73 7% 82 3% 14.8% 9.278% 42 42 13.8% 10.205% 42 42 13.2% 11o131% 42 42 8.2% 19.666% 42 42 7.8% 21.763% 42 42 12.6% 12.058% 42 42 11.9% 13.180% 42 42 7.4% 24. 799% 42 42 42 42 42 42 42 42 42 42 FIGURE 6.11T Coordination Level G Exhaustivity 3 Document Relevance 1-4 Number of Documents in Collection Number of Relevant Documents 198 200 Search Rule A Number of Questions 42 Generality Figure 23,6 Index Documents Recall Language Retrieved Ratio Rel. Non-rel. Precision Fall-out Ratio Ratio Y I.l.a 25 17 12.6% 1.2.a 25 23 12.6% 1.3.a 32 28 16.2% I. 5. a 41 69 20. [OCRerr]/o 1.6.a 47 87 23.7% 1.7.a 31 31 15.7% 1.8.a 33 37 16.7% 1.9.a 46 171 23.2% 59.5% 0.207% 15 52.1% 0.280% 15 53.3% 0.341% 17 37.3% 0. 841% 23 35.1% 1. 081% 23 50.0% O. 378% 20 47.1% 0.451% 21 21.2% 2. 085% 25 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33