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-3 A. IRE-3 Collection, 780 documents, Macro Averages over 34 Requests Cosine Numeric Correlation Abstract Su[OCRerr]fix V51 Stem R ____ R p 0.1 0.7818 0.1 0.8157 0.2 0.6774 0.2 0.7126 0.3 0.5945 0.3 0.6323 o.4 0.5181 0.4 0.5520 0.5 0.4177 0.5 0.4589 0.6 0.3356 0.6 0.3763 0.7 0.2745 0.7 0.3082 0.8 0.2284 0.8 0.2460 0.9 0.1672 0.9 0.1688 1.0 0.0913 1.0 0.0924 RNK REC= 0.1907 RNK REC= 0.1947 LO[OCRerr] PRE:= 0.5578 LOG PRE 0.5724 NOR REC 0.8817 NOR REC 0.8954 NOR PRE= 0.6484 NOR PRE 0.6746 Thesaurus-2 Thesaurus - 3 With Phrases With Phrases R p R P 0.1 0.8370 0.1 0.8947 0.2 0.7253 0.2 0.7682 0.3 o.66i4 0.3 0.7102 0.4 0.5742 0.4 0.6516 0.5 o.48ii 0.5 0.5590 0.6 0.4246 0.6 0.5028 0.7 0.3558 0.7 0.4362 0.8 0.2962 0.8 0.3504 0.9 0.2360 0.9 0.2723 1.0 0.1591 1.0 0.1638 RNK REC= 0.2717 RNK REC 0.2902 LOG PRE 0.6120 LOG PRE- 0.6374- NOR REC= 0.9282 NOR REC= 0.9326 NOR PRE 0.7252 NOR PRE 0.7529 Thesaurus-2 R p 0.1 O.826o 0.2 0.7229 0.3 0.6403 o.4 0.5538 0.5 0.4522 0.6 0.3999 0.7 0.3382 0.8 0.2789 0.9 0.2187 1.0 0.1389 RNK REC 0.2464 LOG PRE 0.5955 NOR REC 0.9191 NOR PRE 0.7072 Hierarchy Thesaurus-3 1 ___________ R p 0.1 0.8740 0.2 0.7969 0.3 0.7006 o.4 0.5964 0.5 0.5350 0.6 0.5029 0.7 0.4346 0.8 0.3461 0.9 0.2447 1.0 O.145o RNK REC 0.2748 LOG PRE 0.6317 NOR REC= 0.9437 NOR PRE 0.7600 Pare2 ts Thesaurus -3 R p 0.1 0.8671 0.2 0.7570 0.3 0.7090 o.4 0.6237 0.5 0.5400 0.6 0.4780 0.7 0.3946 0.8 0.3134 0.9 0.2483 1.0 0.1504 RNK REC 0.2689 LOG PRE= 0.6211 NOR REC= 0.9268 NOR PRE 0.7382 Hierarchy Thesaurus-3 So[OCRerr]s R P 0.1 0e8514 0.2 0.7175 0.3 0.6417 o.4 0.5630 0.5 o.466[OCRerr] 0.6 0.4019 0.7 0.3445 0.8 0.2767 0.9 0.1974 1.0 0.1083 RNK REC 0.2283 LOG PRE 0.5946 NOR REC 0.9269 NOR PRE= 0.7129