SP500207 Appendix A: TREC-1 Results appendix National Institute of Standards and Technology Donna K. Harman Its - Siemens Corporate Research, Inc. [ Summ&y Statistics L Run number siemsl-full, automatic 1 1 Num[OCRerr]quenes 50 Total number of documents over all queries 0.8 Retrieved 9992 Relevant 16400 Rel[OCRerr]et 3393 0.6 Precision [OCRerr]all Level Averages Document Level Averages 0.4 11 Precision Recall Precision 0.7524 at 5 docs 0.0131 0.5200 0.4670 at 15 docs 0.0344 0.4827 0.2 0.3242 at 30 docs 0.0650 0.4687 0.1973 at 100 docs 0.1687 0.4100 0 0.1179 at 200 docs 0.2564 0.3393 0.0672 ROC Averages 0.0241 False Alarm Detection 0.0000 0.00000 0.0660 ) 0.0000 0.00001 0.0959 ) 0.0000 0.00002 0.1194 ) 0.0000 0.00003 0.1369 [OCRerr]e[OCRerr]cision for all points[OCRerr] 0.00004 0.1558 [OCRerr]vg 0.1773 J 0.00005 0.1675 [OCRerr] precision for 3 0.00006 0.1775 Lediate points 0.00007 0.1897 0.00008 0.1971 0.00009 0.2065 I 0.50, 0.80) [OCRerr]vg 0.1305 Recall-Precision Curve A 0 0.2 0.4 0.6 0.8 Recall NORMAL DEVIATE - Detection-False Alarm 0.001 0.02 0.16 0.5 0.84 0.98 0.9 3 2 1 0 -1 ½<½' -2 -[OCRerr] -3 -3 -2 -1 0 2