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-17 indicates that concept has weight 10 12 78 36 198 12 [OCRerr]. Program driving information. The program can only set up the query-document correlations for a maximum of 17 query designations at a time, but these query designations need not be unique. Therefore the driving information should appear so that the desired analysis is grouped into packages of 17. Each package has the following format: a) First card contains in - columns 1-3 number of documents retrieved correlation function indicator 1 Sin[OCRerr]1e Vector [OCRerr]tching 2 Co-occurrence 3 Cosine 7-9 number of analyses to be made (maximum of 17) b) Second card contains in - columns 1-3 number of the query used in 1st analysis ii It II II It 11 It It II II It [OCRerr]f 17th [OCRerr] [OCRerr]9-51 c) Following cards, one for each analysis contain in columns - 1-3 7-9 10-12 initial value of [OCRerr] numerator increment added to [OCRerr] numerator after each iteration [OCRerr] denominator total number of iteration modifications allowed e.g. if the progression of [OCRerr] desired is 3,5,7,... with only three modifications allowed, the card pertaining to this analysis would be: 3213 whereas the progression 3/15, 7/15, 11/15,... with a maxim of 6 modifications would require: 3 4 15 6