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.
EVALUATION ABSTRACT TITLE
MEASURE
Normed. Recall .8237 .8082
Normed. precision .5830 .5979
Title, Stem
0
Ab8tract, Stem
Precision
1.0 -
0.6 -
0.6 -
0.4 -
0.2
I I [OCRerr] Recc
0.8 1.0
0 0.2 0.4 0.6
CRAN-l, [OCRerr]2 Requests.
Performance Results of Abstracts Versus Titles using Overlap Correlation
and Logical Vectors, Stem Dictionary, CRAN-l Collection.
Fig. 13