ISR11
Scientific Report No. ISR-11 Information Storage and Retrieval
Relevance Feedback in an Information Retrieval System
chapter
W. Riddle
T. Horwitz
R. Dietz
Harvard University
Gerard Salton
Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government.
v'-31
Document Relevant Weighting
Rank [OCRerr]ame Applied
Initial 1 307R0LE OF / X 1
Results 2 IIO2CENTRALI 0
3 3O2RECORDING 0
4 lO9STATUS RE 0
5 l2l[OCRerr]WARD A 0
6 l20IACCRRDIT 0
7 llo[OCRerr] AUTO 0
Results After 1 307R0LE OF I x 1
First Update 2 IIO2CENTRALI -1
3 3O2RECORDING -1
4 lO9STATUS RE -1
5 l2l[OCRerr]0WARD A 0
6 120IACCREDIT 0
______________ 7 1107TI]E AUTO 0
Results After 1 3O7ROLE OF / x 1
Second Update 2 90[OCRerr]0CU[OCRerr]ENT 0
3 214ELECTR0NI 0
4 20IA SYSTEM 0
5 209TRE REDUC X 1
6 903THE USE 0 0
7 203NEW P}[OCRerr]T0 X 1
Results After 1 3OThOLE OF I x
Third Update 2 209THE REDUC x
3 203NEw H[OCRerr]0 X
4 214ELECTR0NI
5 90[OCRerr]CUME[OCRerr]
6 20IA SYATEM
7 21IA C0[OCRerr]PUTE x
10 206ANALYSIS x
[OCRerr]ery OAI2JOURNAL
dosine Correlation Function
Constant Alpha Strategy
The Effect of Negative Weightings Applied to Nonrelevant
Documents which Consistently Appear on the Output List
With a Relatively High Correlation
Figure 3