SP500215 Appendix A: TREC-2 Results Appendix National Institute of Standards and Technology D. K. Harman suits - University of Illinois at Chicago Summary Statistics Run Number uicah-full, automatic 1 Recall-Precision Curve Num of Queries 50 J 1 Total number of documents over all queries 1 Retrieved: 45108 1 0.8 Relevant: 10785 Rel[OCRerr]ret: 4421 0.6 [OCRerr]ecall Level Averages Recall Precision 0.00 0.5665 0.10 0.3272 0.20 0.2527 0.30 0.1937 0.40 0.1413 0.50 0.0712 0.60 0.0393 0.70 0.0069 0.80 0.0000 0.90 0.0000 1.00 0.0000 age precision over all 1 ant docs interpola~~.1200 Level Averages t ~0 0 0 0 0 0 0 0 0 0 0 Recall 0.2095 0.3057 0.3532 0.3860 0.4125 0.4359 0.4467 0.4467 0.4467 0.4467 0.4467 Document Level Averages Precision At 5 docs 0.3280 At 10 docs 0.3340 At 15 docs 0.3280 At 20 docs 0.3380 At 30 docs 0.3233 At 100 docs 0.2784 At 200 docs 0.2107 At 500 docs 0.1392 At 1000 docs 0.0884 R-Precision (precision after R docs retrieved (where R is the number of relevant docu- ments)) Exact I 0.1950 NORMAL DEVIATE - Fallout-Recall Precision 0.4 0.2 0 1 0.8 0.6 Recall )01 0.02 0.84 0.98 0 0.4 - 0.2 2 0.98 1 0.84 0 0.5 0 0 0.05 0.1 0.15 0.2 -1 0.16 Fallout x 100 -2 0.02 -3 0.001 -3 -2 -1 0 1 3 0 0.2 0.4 0.6 0.8 Recall Fallout-Recall Curve I I A