SP500207 Appendix A: TREC-1 Results appendix National Institute of Standards and Technology Donna K. Harman suits - GE Research and Development Center Summary Statistics Run number gecrdl-full, manual 1 Num[OCRerr]queries 50 Total number of documents over all queries 0.8 Retrieved 6911 Relevant 15459 Rel[OCRerr]ret 3308 0.6 Precision ecall Level Averages Document Level Averages tll Precision _____________ Recall Precision 0.4 () 0.8044 at 5 docs 0.0133 0.6080 () 0.5286 at 15 docs 0.0359 0.5840 0.2 0 0.3427 at 30 docs 0.0720 0.5747 () 0.2006 at 100 docs 0.1713 0.4486 0 0.0703 at 200 docs 0.2377 0.3308 0 0 0.0275 ROC Averages 0 0.0171 False Alarm Detection 0 0.0000 0.00000 0.0674 0 0.0000 0.00001 0.1082 0 0.0000 0.00002 0.1394 0 0.0000 0.00003 0.1558 ge precision for all points 0.00004 0.1720 Avg 0.1810 0.00005 0.1859 ge precision for 3 0.00006 0.1912 [OCRerr]ediate points 0.00007 0.1976 0.50, 0.80) 0.00008 0.2040 [OCRerr]vg 0.1234 0.00009 0.2105 Recall-Precision Curve ¼--- A 0 0.2 0.4 0.6 Recall NORMAL DEVIATE - Detection-False Alarin 0.001 0.02 3 I I 0.16 0.5 0.84 0.98 0 2 ½½' 1 0 -1 -[OCRerr] -2 -3II -3 -2 -1 0 2