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-i8 The program as it is presently written is for a document-query set containing 82 documents and [OCRerr] queries. Do locp indices, tables of factorials, and matrices are all set for this size set, and would have to be changed before the program could be used on a set of different size. A data deck to perfor[OCRerr]n a cosine correlation analysis on queries, 2,7, and 33, using the increasing [OCRerr], and [OCRerr] equal to the correlations strategies for both 15 and 30 documents retrieved would appear as follows: is 3 6 set number retrieved at 15 227 7 33 33 query nuzi[OCRerr]bers concerned 111 3 strategy cards for query 2 001 3 111 3 strategy cards for query 7 001 3 111 3 strategy cards for query 33 001 3 30 3 6 change number retrieved to 30 227 7 33 33 query numbers concerned 111 3 a strategy cards for query 2 001 3 111 3 a strategy cards for query 7 001 3 1113 a strategy cards for query 33 0013