SP500207 Appendix A: TREC-1 Results appendix National Institute of Standards and Technology Donna K. Harman [OCRerr]sults - GE Research and Development Center ] Run number gecrd2-full, manual Num[OCRerr]queries 50 1 [ Total number of documents over all queries Retrieved 8146 0.8 Relevant 16400 f Rel[OCRerr]ret 3689 0.6 Recall Level Averages Document Level Averages Precision [OCRerr]all Precision Recall Precision 0.4 DO 0.8769 at 5 docs 0.0158 0.6480 10 0.5646 at 15 docs 0.0439 0.6253 20 0.3367 at 30 docs 0.0768 0.5753 0.2 30 0.1644 at 100 docs 0.1852 0.4628 0.1013 at 200 docs 0.2712 0.3689 0 0.0723 0.0495 ROC Averages 0.0041 False Alarm Detection 0 0.0000 0.00000 0.0807 0 0.0000 0.00001 0.1120 0 0.0000 0.00002 0.1383 0.00003 0.1544 ge precision for all points 0.00004 0.1698 Avg 0.1973 0.00005 0.1802 ge precision for 3 0.00006 0.1912 lediate points 0.00007 0.2024 0.50, 0.80) 0.00008 0.2168 [OCRerr]vg 0.1363 0.00009 0.2249 Recall-Precision Curve 0 0.2 0.4 0.6 0. Recall NORMAL DEVIATE - Detection-Falac Alarm 0.001 0.02 0.16 0.5 0.84 0.98 0. 3 2 0 I I I -3 -2 -1 0 2 3 -1 -2 -3