ISR10 Search Request Formulation chapter Joseph John Rocchio Harvard University Gerard Salton Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. 6. Conv[OCRerr]rt e[OCRerr] to [OCRerr]i ifl[OCRerr]e&er foimat array: (where !x;' IS the largest iTiteger [OCRerr]ot exceedirig x, and 512 is a scaling factor.) 7. A[OCRerr][OCRerr]ly the screening algorithm to IQ(:) to produce the resultant modified query vector: I[OCRerr](I) [OCRerr] IQ(I) if x1 (i) v .(x2(i) A X (I)) = 1 5 0 & otherwize where x1(:), x2(I), and x5(i) are logical variables defined by: x1(i) = 1 if Q(i) >0 N1 x2(i) =1 if [OCRerr](i,j) Ji > LN1/2J x3(I) = 1 if > [OCRerr]2s(i,J) J=1 [OCRerr]able 5.1 (continued)