ISR11
Scientific Report No. ISR-11 Information Storage and Retrieval
A Modified Two-Level Search Algorithm Using Request Clustering
chapter
V. R. Lesser
Harvard University
Gerard Salton
Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government.
VII- 39
Case 10 - The Normal [OCRerr][OCRerr]To-Leve1 Search Scheme with 10 Categories Based
on the Clustering o[OCRerr] Documents with the Last 10 [OCRerr]ueries
Used as a Test Collection o[OCRerr] [OCRerr]ueries.
n c K(c,n) M(c,n) P(c,n)
3 .20 10 [OCRerr].10 .33
6 .20 10 8.30 .55
9 .20 10 13.90 .69
12 .20 10 21.20 .78
3 .30 10 9.10 .50
6 .30 8 11.75 .75
9 .30 3 26.00 .85
12 .30 2 36.50 .92
3 5 8.80 .73
6 2 10.50 .83
9 0 0 0
12 0 0 0
3 .50 1 3.00 .33
6 .50 0 0 0
9 .50 0 0 0
12 .50 0 0 0
3 .60 0 0 0
6 .60 0 0 0
9 .60 0 0 0
12 .60 0 *0 0
TOTALS 71 = 12.38 = .63
[OCRerr]R(c,n)
.34
.54
.78
.48
.39
.33
.50
.40
0
0
0
0
0
0
0
0
0
0
0
RT=
46