IRS13
Scientific Report No. IRS-13 Information Storage and Retrieval
Suffix Dictionaries
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.
Stem Stem
OM
Suffix `S' Suffix `S'
OM
H' H'
Precision Precision
dh
1.0 - 1.0
0.8
0.6
-Q\
K
0.8
0.6
0.4 0.4 -
0.2 0.2
0 0.2 0.4 0.6 0.8 l.0[OCRerr]
a) IRE-3, Abstracts, 3lf Requests
I I I [OCRerr] Reca
Recall
0 0.2 0.4 0.6 0.8 1.0
b) Cran-l, Abstracts, 1+2 Requests
Performance Curves Comparing Stem and Suffix `S'
Dictionaries on Two Collections
Fig. 2.