ISR11
Scientific Report No. ISR-11 Information Storage and Retrieval
Design Criteria for Automatic Information Systems
chapter
M. E. Lesk
G. Salton
Harvard University
Gerard Salton
Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government.
V-9
a Irrelevant
Not Retrieved
C
b+c
p C
c+d
b --Relevant
not Retrieved
d Irrelevant
Retrieved
~Retrieved
Relevant
C - Relevant
Retrieved
PARTITIONING OF DOCUMENT COLLECTION
Fig. 4