IRS13 Appendix A: Recall-Precision Tables appendix Harvard University Gerard Salton Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. A-7 B. CRAN-l Collection, 200 documents, Macro Averages over [OCRerr]2 Requests Cosine Numeric Correlation Abstract Su[OCRerr]fix I[OCRerr]Y R P 0.1 0.8513 0.2 0.6977 0.3 0.5870 O.[OCRerr] 0.5100 0.5 o.1460o 0.6 0.'4317 0.7 0.3999 0.8 0.3622 0.9 0.3168 1.0 0.2739 RNK REC 0.3168 LOG PRE 0.[OCRerr]787 NOR REC= 0.8717 NOR PRE 0.7018 Thesaurus-3 R P Stem Thesaurus-i Thesaurus-2 R P R P R P 0.1 0.8239 0.1 0.771+7 0.1 0.8286 0.2 0.6518 0.2 0.5895 0.2 O.65io 0.3 0.5578 0.3 0.5130 0.3 0.5608 0.1+ 0.5093 o.1+ 0.1+672 0.1+ 0.5198 0.5 0.1+522 0.5 o1+i65 0.5 0.1+653 0.6 0.1+11+3 0.6 0.3780 0.6 0.1+21+3 0.7 0.3800 0.7 0.3381+ 0.7 0.381+8 0.8 0.31+31 0.8 0.2993 0.8 0.31+12 0.9 0.3005 0.9 0.2666 0.9 0.301+0 1.0 0.2551 1.0 0.2183 1.0 0.2661+ RNK REC 0.2998 RNK REC= 0.2552 LOG PRE= o.[OCRerr]655 LOG PRE o.1+i80 NOR REC= o.861+1+ NOR REC= 0.8602 NOR PRE= 0.6701+ NOR PRE 0.6319 Thesaurus-3 Stem Concon With Phrases Freq. All _______ K = 0.6 R P R P 0.1 0.8l[OCRerr]4 0.1 0.8069 0.1 0.8039 0.2 0.2 0.6289 0.2 0.6331 0.3 0.5733 0.3 0.571+8 0.3 o.56i1 0.5298 o.1+ 0.5311+ o.1+ 0.5166 0.5 o.[OCRerr]8ii 0.5 0.1+767 0.5 0.1+796 0.6 0.[OCRerr][OCRerr]ll 0.6 0.1+390 0.6 0.1+459 0.7 O.3[OCRerr]9 0.7 0.3901 0.7 0.1+095 0.8 O.3[OCRerr]71 0.8 0.31+35 0.8 0.3675 0.9 0.3206 0.9 0.301+3 0.9 0.3385 1.0 0.2913 1.0 o.2658 1.0 0.3102 RNK REC 0.3239 RNK REC 0.311+0 RNK REC= 0.3517 LOG REC 0.1+893 LOG PRE 0.1+807 LOG PRE 0.4991 NOR REC 0.8837 NOR REC 0.8791 NOR REC= o.81+01+ NOR PRE=[OCRerr]0[OCRerr]6952 NOR PRE 0.6873 NOR PRE 0.6342 RNK REC= 0.3121 LOG PRE= 0.1+715 NOR REC= 0.8861+ NOR PRE 0.6861+ Stem Concon Freq. 6 - 100 K = o.1+5 r R P 0.1 0.7882 0.2 o.6086 0.3 0.5506 0.1+ 0.5186 0.5 0.1+927 0.6 0.1+733 0.7 0.1+271 0.8 0.3803 0.9 0.31+60 1.0 0.3112 E[OCRerr] REC= 0.3561 LOG PRE= 0.1+920 NOR REC= 0.8765 NOR PRE 0.6790