IRS13 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. 11-35 P P I 2 - --0- 9 12 8 <`II[OCRerr] Ranks of Relevant 1, 2, 9, 12 a) First Document Relevant, Total Relevant > 1 [OCRerr][OCRerr]o2½T[OCRerr] 9 12 8 Ranks of Relevant 2, 3, 9, 12 a) First Document [OCRerr]on-relevant, Total Relevant > 1 0 = Relevant x = Tion-relevant PI I------------------ Rank of Relevant 1 c) Total Relevant 1, Document Relevant 0 - Performance assumed until a relevant docume[OCRerr]t examined I[OCRerr]I% R R Rank of Relevant 2 First d) Total Relevant 1, First Document Non-relevant Illustrations of Third Method of "Left E[OCRerr]d [OCRerr]bctrapo1ation" Fige 20