SP500207 CLARIT TREC Design, Experiments, and Results chapter D. Evans R. Lefferts G. Grefenstette S. Handerson W. Hersh A. Archbold National Institute of Standards and Technology Donna K. Harman Routing Queries, 1-50 Ad-Hoc Queries, 51-100 Num[OCRerr]quenes: 50 Num4uenes: 50 Total number of documents Total number of documents over all queries over all queries Retrieved: 10000 Retrieved: 10000 Relevant: 14216 Relevant: 16400 Reijet: 3427 Rel[OCRerr]et: 3409 Recall-Precision Averages: Recall-Precision Averages: at 0.00 0.7479 at 0.00 0.9010 at 0.10 0.5440 at 0.10 0.5497 at 0.20 0.3641 at 0.20 0.3609 at 0.30 0.2513 at 0.30 0.1997 at 0.40 0.1725 at 0.40 0.1304 at 0.50 0.0663 at 0.50 0.0514 at 0.60 0.0336 at 0.60 0.0423 at 0.70 0.0162 at 0.70 0.0169 at 0.80 0.0000 at 0.80 0.0000 at 0.90 0.0000 at 0.90 0.0000 at 1.00 0.0000 at 1.00 0.0000 Average precision for all points 11-pt Avg: 0.1996 Average precision for 3 intermediate points (0.20, 0.50, 0.80) 3-pt Avg: 0.1435 Average precision for all points 11-pt Avg: 0.2048 Average precision for 3 intermediate points (0.20, 0.50, 0.80) 3-pt Avg: 0.1374 Recall: Recall: at 5 docs: 0.0130 at S docs: 0.0179 at 15 docs: 0.0431 at 15 docs: 0.0455 at 30 docs: 0.0802 at 30 docs: 0.0804 at 100 docs: 0.2080 at 100 docs: 0.1834 at 200 docs: 0.2917 at 200 docs: 0.2567 Precision: Precision: At 5 docs: 0.5120 At 5 docs: 0.7560 At 15 docs: 0.5320 At 15 docs: 0.6533 At 30 docs: 0.5140 At 30 docs: 0.6020 At 100 docs: 0.4560 At 100 docs: 0.4570 At 200 docs: 0.3427 At 200 docs: 0.3409 Table 3: Offical Results, CLARIT "B"-Topics 1-50 and 51-100 275