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.
1.0
2nd ITERATION
.9 RELEVANCE
FEEDBACK
.8
.7
INITIAL
QUERIES
.6
1st ITERATION
z 5
0 RELEVANCE FEEDBACK
U)-
0 4
w
(1
.3
.2
.1
I I I I I I I I I I
.1 .2 .3 .4 .5 .6 .7 .8 .9 t.0
RECALL
COMPARISON OF SIMPLE SEARCH WITH ITERATED SEARCH PROCESS
(IRE - 2 AVERAGES OVER 24 REQUESTS)
Fig. 15