SP500207 Appendix A: TREC-1 Results appendix National Institute of Standards and Technology Donna K. Harman Its - Universitaet Dortmund Summary Statistics Run number fuhrp2-fulI, automatic Num[OCRerr]queries 50 ] 1 1 Total number of documents over all queries 0.8 Retrieved 10000 Relevant 16400 Rel[OCRerr]ret 3613 0.6 - Recall- Precision Curve call Level Averages Precision 0.7236 0.5083 0.3641 0.2350 0.1722 0.1116 0.0508 0.0479 0.0234 0.0228 0.0000 ;e precision for a[OCRerr]ll points [OCRerr]vg 0.2054 I e precision for 3 ediate points ).50, 0.80) 0.1664 Precision Document Level Averages 0.4 Recall Precision at 5 docs 0.0142 0.5440 at 15 docs 0.0393 0.5293 0.2 at 30 docs 0.0740 0.5140 at 100 docs 0.1950 0.4468 at 200 docs 0.2829 0.3613 0 0 0.2 0.4 0.6 0.8 ROC Averages Recall False Alarm Detection 0.00000 0.0841 0.00001 0.1194 0.00002 0.1477 0.00003 0.1678 0.00004 0.1865 0.00005 0.2027 0.00006 0.2140 0.00007 0.2254 0.00008 0.2346 0.00009 0.2439 NORMAL DEVIATE - Detection-False Alarm 0.001 0.02 0.16 3 2 1 0 0.5 0.84 0.98 0.9'. ½½' I I -1 -2 -3 I I I I -3 -2 -1 0 2 3