ISR11 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. vi-66 Results for Query 12 O[OCRerr]l2JOURI[OCRerr]L Document Rank No. Name Relevant Correlation 1 14 3OTROLE OF! x . 6[OCRerr]956980 2 [OCRerr]0 llO2CENTRALI . 3825[OCRerr]603 3 19 3O2RECORDING 300961463 14 [OCRerr]6 lO9STATUS RE .2977[OCRerr]567 5 6o 121[OCRerr]OWARD A . 214[OCRerr]91[OCRerr]897 6 10 l20IACCREDIT .2014l2[OCRerr]l5 7 81 1lO[OCRerr]H:E AUTO .2014121415 8 75 20IA [OCRerr] .20l3[OCRerr]682 9 [OCRerr]3 1206THE EDUC .19658927 10 21 l2O9SCIENCE .1723[OCRerr]55O 11 35 1O024DENSrTY .16823165 12 13 1l19RECENT A .161439899 13 57 603CO[OCRerr][OCRerr]ILATI .l63663[OCRerr]2 14 4[OCRerr] 1215 GRADUA[OCRerr][OCRerr] .15861032 15 38 3Q30. M. [OCRerr]iI[OCRerr] .15713484 Ranl[OCRerr]ng took .083333 seconds Relevant Document Ranks Document Rank No. Name Relevant Correlation 1 14 307?OLE OF/ X .64956980 16 7 21IA CO\i[OCRerr]PUTE X .14907l[OCRerr] 17 9 206ANALYs1s x .14684712 25 25 20[OCRerr]I{E REDUC X .10629880 33 42 203NE[OCRerr] PHOTO X .06711561 Normalized Recall = .8025641 Normalized Rrecision = .5599956 Rank Recall = .1630 Log Rrecision = .3886 TT = + Alpha - [OCRerr][OCRerr]IGHT(I)[OCRerr] Document of Rank I Query(l) Query(0) (1) 1=1 Document Rank 1 2 3 14 5 6 7 8 9 10 11 12 13 14 15 Weight 100000000000000 N = Number of retrieved documents Alpha = 2 (e) Initial Results (Constant Alpha Strategy) Figure 12 (continued)