ISR11
Scientific Report No. ISR-11 Information Storage and Retrieval
Design Criteria for Automatic Information Systems
chapter
M. E. Lesk
G. Salton
Harvard University
Gerard Salton
Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government.
0
Null Concon All
Null Concon 5-50 (1(0.60)
Null Concon 6-100 (Ku 0.45)
PRECISION
1.0
0.8.
0.6 -
0
[OCRerr]O X[OCRerr]X[OCRerr]A
0[OCRerr]6-\-
0.4-
0.2 -
p p RECALL
0 Q2 OA 0.6 0.8 1.0
Comparison of Word-Word Association Strategies
(IRE-2 averaged over 17 requests)
Fig. 10