SP500207 Appendix A: TREC-1 Results appendix National Institute of Standards and Technology Donna K. Harman `its - Queens College, CUNY L Summ&y Statistics1 Recall-Precision Curve Run number pircs3[OCRerr]ategory B, 1 Num4ueries feedbac2k5 Total number of documents over all queries 0.8< Retrieved 5230 1 Relevant 3318 Rel[OCRerr]ret 1526 0.6 Precision Document Level Averages 0.4 ecall Level Averages Recall Precision Lll Precisi6n at 5 docs 0.0725 0.6400 0.7970 at 15 docs 0.1325 0.5467 0.2 [) 0.6978 at 30 docs 0.2090 0.4920 [) 0.5873 at 100 docs 0.4559 0.3920 I- 0 D 0.4398 at 200 docs 0.6163 0.2970 0 0.2 0.4 0.6 () 0.3595 ROC Averages Recall 0 0.2982 False Alarm Detection 0 0.2460 NORMAL DEVIATE - Detection-False Alarm 0.00000 0.1409 0 0.1700 0. 001 0.02 0.16 0.5 0.84 0.98 0.1 0.00002 0.1911 3 0 0.0898 0.00004 0.2198 0 0.0489 0.00006 0.2751 0 0.0136 0.00008 0.2806 .[OCRerr]ecision for all points 1 0.00010 0.2931 Avg 0.3407 0.00012 0.3500 ge precision for 3 0.00014 0.3654 [OCRerr]diate points 0.00016 0.3668 0.50, 0.80) 0.00018 0.4119 [OCRerr]vg 0.3251 0.00020 0.3941 2 1 0 -1 -2 -3 -3 -2 -1 0 1 2