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.
~Iized
oil
Individual
8 26 Requests
Stem
KSuffix 8[OCRerr]I
26 Requests better on Suffix `5' (76.5%)
8 Requests better on Stem (23.5%)
8 Requests equal on both
Normalized
Precision
.20 -
Stem
Suffik
.16 x
.12
.08
.04
0
I
10 25
25 Requests better on Suffix `5' (71.4
10 Requests better on Stem (28.6
7 Requests equal on both
CRAN-l, 42 Requests
Graphs of the Magz[OCRerr]tudes of the Differences in Individual Requests, Comparing
Stem and Suffix `5' Dictionaries, using Normalized Recall and Precision
Fig. 6.