IRS13
Scientific Report No. IRS-13 Information Storage and Retrieval
Evaluation Parameters
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.
11-20
* Macro Evaluation
Micro Evaluation
OM
C
0
0.5
0.4
0.3
0.2
0.1
U I I I
0 0.2 0.4 0.6 0.8 1.0
Recall
Cran-l, Abstracts, Thesaurus-3, "Pseudo-Cranfield" Averages
Over [OCRerr]2 Requests
Retrieval C[OCRerr]parison of the Macro arid Micro Averagirig Methods
Fige lie