SP500207
NIST Special Publication 500-207: The First Text REtrieval Conference (TREC-1)
Appendix B: TIPSTER Panel Results
appendix
National Institute of Standards and Technology
Donna K. Harman
`its - HNC, Inc.
[ Summary Statistics
Run number HNCmn1[OCRerr]isk1 only, manual 1
Num[OCRerr]queries 50
Total number of documents over all queries
Retrieved 9982 0.8 -
Relevant 10477
Rel[OCRerr]et 2711 0.6
Recall-Precision Curve
[OCRerr]all Level Averages
Precision
0.6569
0.4078
0.3005
0.2331
0.1540
0.0952
0.0338
0.0169
0.0101
0.0020
0.0020
r,e precision for all points
[OCRerr]vg 0.1739
v,e precision for 3
ediate points
[).50, 0.80)
Lvg 0.1352
Precision
Document Level Averages
Recall Precision 0.4
at 5 docs 0.0184 0.4400
at 15 docs 0.0469 0.4227 0.2
at 30 docs 0.0758 0.3847
at 100 docs 0.2098 0.3388
at 200 docs 0.3209 0.2711 0
0 0.2 0.4 0.6 0.8
ROC Averages Recall
False Alarm Detection
0.00000 0.0726
0.00001 0.0967
0.00002 0.1039
0.00003 0.1287
0.00004 0.1301
0.00005 0.1518
0.00006 0.1677
0.00007 0.1837
0.00008 0.1857
0.00009 0.1995
NORMAL DEVIATE - Detection-False Alarm
C
I I
0 i01
3
2
1
0
-1
-2
.3
0.02
0.16 0.5 0.84 0.98 0
-3 -2 -1 0 1 2 3