ISR11 Information Analysis and Dictionary Construction chapter G. Salton M. E. Lesk Harvard University Gerard Salton Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. IV-35 Null Title Null Title 2 Full I'[OCRerr]ll Only 30 0.1 0.8307 0.1 o.91[OCRerr] 0.1 0.9563 0.2 o.680o 0.2 0.3853 0.2 0.8648 0.3 0.5720 0.3 0.7881 0.3 0.7968 o.4 0.5323 o.4 0.7049 0.4 0.7381 0.5 0.4816 0.5 0.6437 0.5 0.6371 0.6 0.4142 0.6 0.5812 0.6 0.5589 0.7 0.3489 0.7 o.5i48 0.7 0.4877 0.8 0.2687 0.8 0.4262 0.8 o.4o86 0.9 o.2016 0.9 0.3518 0.9 0.3426 1.0 0.1463 1.0 0.2761 1.0 0.2613 ~0ISI0N 1.0 0 0. 0. 0.8 0 .9- + --___ __- - - 7- - ____ - 6 ¾ ½ _ [OCRerr] 5--- -_ _ ¼ [OCRerr]\½ y `½ 3--- > 2[OCRerr][OCRerr][OCRerr]_ ½ ½ 1 .1 .2 .3 .4 .5 .6 .7 .8 .9 1.0 [OCRerr]ECALL 0. 0 0 o.4 0 Comparison Base[OCRerr] on Document Lengbh (aver[OCRerr]es over 17 search requests) Fig. 9