SP500207 Appendix A: TREC-1 Results appendix National Institute of Standards and Technology Donna K. Harman [OCRerr]u1ts - PARA Group Summary Statistics Recall-Precision Curve Run number parazi-full, manual 1 1 N um[OCRerr]queries 50 Total number of documents over all queries Retrieved 8823 0.8 Relevant 15459 Rel[OCRerr]ret 3503 0.6 [OCRerr]all Level Averages 11 Precision p 0.7604 p 0.5288 p 0.3483 0.2336 0.0647 0.0302 0.0187 0.0000 0.0000 0.0000 ____ 0.0000 ;e precision for all points I 0.1804 [OCRerr] precision for 3 ediate points ).50, 0.80) .vg 0.1262 Precision Document Level Averages Recall Precision 0.4 at 5 docs 0.0141 0.5720 at 15 docs 0.0356 0.5467 0.2 at 30 docs 0.0693 0.5353 at 100 docs 0.1825 0.4744 I I A at 200 docs 0.2553 0.3503 0 0 0.2 0.4 0.6 0.8 ROC Averages Recall False Alarm Detection 0.00000 0.0799 0.00001 0.1129 0.00002 0.1358 0.00003 0.1497 0.00004 0.1670 0.00005 0.1788 0.00006 0.1928 0.00007 0.2058 0.00008 0.2131 0.00009 0.2214 NORMAL DEVIATE - Detection-False Alarm 0.001 0.02 3 2 1 0 -1 -2 0.16 0.5 0.84 0.98 0. ½<½ -3 [OCRerr]I II -3 -2 -1 0 2 3