SP500207 NIST Special Publication 500-207: The First Text REtrieval Conference (TREC-1) Appendix A: TREC-1 Results appendix National Institute of Standards and Technology Donna K. Harman ults - University of Illinois at Chicago Summary Statistics J Run number danyul-full, automatic Recall-Precision Curve Num[OCRerr]queries 50 1 Total number of documents over all queries 1 Retrieved 95881 0.8 Relevant 16400 ReLret 1514 0.6 ecall Level Averages Lll Precision [) 0.4710 [) 0.1652 [) 0.0497 [) 0.0059 [) 0.0000 0.0000 [) 0.0000 ) 0.0000 ) 0.0000 ) 0.0000 ) 0.0000 [OCRerr]recision for all poi ntsl [OCRerr]vg 0.0629 ] [OCRerr]e precision for 3 ediate points 0.50, 0.80) [OCRerr]vg 0.0166 Document Level Averages Precision Recall Precision 0.4 at 5 docs 0.0065 0.2760 at 15 docs 0.0138 0.2253 0.2 at 30 docs 0.0259 0.2347 at 100 docs 0.0578 0.1818 A A A at 200 docs 0.0961 0.1514 0 0 0.2 0.4 0.6 0.8 ROC Averages Recall False Alarm Detection 0.00000 0.0191 0.00001 0.0297 0.00002 0.0350 0.00003 0.0386 0.00004 0.0423 0.00005 0.0458 0.00006 0.0493 0.00007 0.0525 0.00008 0.0563 0.00009 0.0621. NORMAL DEVIATE - Detection-False Alarm 0.001 0.02 3 0.16 0.5 0.84 0.98 0.9 2 1 7 0 ½ -1 -2 -3 W[ I I -3 -2' -1 0 1 2 3