ISR10 Scientific Report No. ISR-10 Information Storage and Retrieval Search Request Formulation chapter Joseph John Rocchio Harvard University Gerard Salton Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. 3-37 Do ouri[OCRerr]ent Doo[OCRerr]mient Correlation User Feedback Rank [OCRerr]u'nber 1 [OCRerr]1 .57 Relevant 2 237 .56 Relevant 3 300 .55 Relevant 4 94 .50 Relevant 5 365 .33 --- 6 ! 219 .29 --- 7 347 .28 --- 8 68 .27 --- 4 a) Retrieval Res[OCRerr]ts Using Original Q[OCRerr]ery for [OCRerr]1Random [OCRerr][OCRerr][OCRerr]i[OCRerr]ibers11 Including User Feedback r Document [OCRerr] Docu[OCRerr][OCRerr]ent Correlation 1' Rank [OCRerr]iimber r 11 91' .74 2 944 .73 3 3003 .70 4 237 .69 5 219 .37 6 254 .31 7 347' .26 [OCRerr] 8 195 .26 b) Retrieval Results for Modified [OCRerr]uery C9mparison of Retrieval Results Using Original and Modified [OCRerr]uery for Search Re[OCRerr]uest 11Random [OCRerr]umbers1' Figure 3.11