IRS13
Scientific Report No. IRS-13 Information Storage and Retrieval
Test Environment
chapter
E. M. Keen
Harvard University
Gerard Salton
Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government.
17 Requests prepared by staff members.
I? Requests prepared by a non-staff person.
-------34 Requests, both sets combined.
Q00005
QOOOI
Q0002
0.000[OCRerr]
0.001
0.002
C 0.00[OCRerr]
0
IL OeOO I
0e02
0.0[OCRerr]
0.l
0.2
1.0
\ %%[OCRerr]
[OCRerr]
[OCRerr]
[OCRerr]
[OCRerr]
[OCRerr]
0.1 0.2 0.3
0.4 0.5 0.6 0.7 0.8 0.9 1.0
Recall
IRE-3, [OCRerr]bstracts, Stem Dictiona[OCRerr], Micro Averages over
request sets indicated, Pseudo-Cranfield Cut-off.
Performance Coinparison[OCRerr] of Staff and Non-staff Prepared Requests
Fig. 12