SP500207 Appendix A: TREC-1 Results appendix National Institute of Standards and Technology Donna K. Harman ults - GE Research and Development Center I Summ&y Statistic s] Run number gecrd2-full, manual 1 Num[OCRerr]queries 50 ] Total number of documents over all queries Retrieved 7820 Relevant 15459 Rel[OCRerr]ret 3581 call Level Averages Precision 0.8637 0.5725 0.3519 0.2218 0.0869 0.0299 ) 0.0157 ) 0.0000 ) 0.0000 ) 0.0000 [) 0.0000 [OCRerr] precision for all points Avg 0.1948 ge precision for 3 lediate points 0.50, 0.80) [OCRerr]vg 0.1273 Document Level Averages Recall Precision at 5 docs 0.0161 0.6880 at 15 docs 0.0417 0.6387 at 30 docs 0.0752 0.5953 at 100 docs 0.1832 0.4672 at 200 docs 0.2633 0.3581 0.8 0.6 Precision 0.4 0.2 0 Recall-Precision Curve 0 0.2 0.4 0.6 0.8 ROC Averages Recall False Alarm Detection 0.00000 0.0773 0.00001 0.1087 0.00002 0.1414 0.00003 0.1629 0.00004 0.1847 0.00005 0.1966 0.00006 0.2044 0.00007 0.2129 0.00008 0.2174 0.00009 0.2262 0.001 0.02 0.16 ( 3 2- 1- 0 NORMAL DEVIATE - Detection-False Alarm I. 5 0.84 0.98 0. -1 -2 -[OCRerr] -3 -3 -2 -1 0 1 2