IRS13
Scientific Report No. IRS-13 Information Storage and Retrieval
Search Matching Functions
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.
Logical, Cosine, Stem
Logical1 Cosine, Thesaurus-
Numeric, Cosine, Stem Numeric, Cosine, Thesaurus
x
Precision Precision
1.0 1.0 -
0.8 0.8
0.6 0.6
0.4 0.4
0.2 0.2
I I I I I [OCRerr] Recc
````Ii R eco Ii
0 0.2 0.4 0.6 0.8 1.0 0 0.2 0.4 0.6 0.8 1.0
ADI, Text, 3[OCRerr] Requests
ADI, Text, 35 Requests
Per[OCRerr]o[OCRerr]ance c\:irves comparing numeric and logic&1 vectors
two dictionaries, ADI Text Collection.
Fig. 20.