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-b Cosine Logical Correlation Title Stem R P 0.1 0.8321 0.2 0.6833 0.3 0.629[OCRerr] O.[OCRerr] 0.5580 0.5 0.[OCRerr]82[OCRerr] o.6 0.3988 0.7 0e3256 o.8 0.2713 0.9 0.2309 1.0 0.2022 RNK REC 0.23[OCRerr]l LOG PRE o.[OCRerr]o85 NOR REC 0.8120 NOR PRE= 0.6212 Overlap Logical Correlation Abstract Stem Thesaurus-3 R P R P 0.1 0.7886 0.1 0.8363 0.2 0.5936 0.2 0.6639 0.3 O.[OCRerr]9l3 0.3 0.5726 0.4 0.4321 o.4 0.5173 0.5 0.3794 0.5 0.4610 o.6 0.3479 o.6 0.4197 0.7 0.3153 0.7 0.3756 o.8 0.2812 o.8 0.3296 0.9 0.2511 0.9 0.2772 1.0 0.2214 1.0 0.2235 RNK REC= 0.2464 RNK REC 0.2626 LOG PRE 0.4207 LOG PRE= 0.4374 NOR REC= 0.8237 NOR REC= 0.8535 NOR PRE 0.5830 NOR PRE 0.6251