IRS13 Scientific Report No. IRS-13 Information Storage and Retrieval Evaluation Parameters 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. 11-58 Generality Request Ranks of Reievant SPECIFICt AB 1:42:27 C 7,21,45 D 1,2,5,7,8,9,14,15 GENERAL E 3,7,10,22,33,37,49,51 $ F _____ 1,2,8,10,11,29,36,47 Rank Positions of the Relevant Documents for Six H[OCRerr]rpothetica1 Requests. Fig. 31.