IRS13 Test Environment chapter E. M. Keen Harvard University Gerard Salton Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. Number of % of Total Documents Collection NUMBER OF DOCUMENTS RELEVANT TO: Relevant to Relevant to one or more one or more _________________________ Requests Requests 1 REQ. 2 REQ. 3 [OCRerr] 4 REQ. 5 REQ. 6 REQ. 7 REQ. 80 430 55.1% 287 120 21 2 - 200 153 76.5% 115 33 5 - - - 72 87.8% 19 23 19 9 1 - Number of Documents in the Collection Assessed as Relevant Fig. `4