IRS13
Scientific Report No. IRS-13 Information Storage and Retrieval
Document Length
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.
Abstract, Stem o Abstract, Thesaurus -2
x [OCRerr]ndexing, Stem Indexing, Thesaurus -2
)½
Precision Precision
1.0 1.0 -
-o)\
0.8
0.8 -
0.6 0.6
0.4 0.4
0.2 0.2 -
x
I I I I I [OCRerr] Recall
0.8 1.0
0 0.2 0.4 0.6
I I I I I [OCRerr] Reca
0 0.2 0.4 0.6 0.8 1.0
CRAN-l, 42 Requests
Performance Results Comparing Abstracts with Indexing, on Two Dictionaries.
Fig. 28.