ISR10 Scientific Report No. ISR-10 Information Storage and Retrieval The Query-Document Matching Function 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. Category Corr. No. of Cumulative Overlap Overlap Category [OCRerr]ormal. Number with Elements No. 0£ Corr. Corr. Recall Recall Query Elements 1st 15 1st 30 5 - .66 29 29 .6o .62 .86 .86 20[OCRerr] 2 .46 23 49$ .80 .77 1.00 1.00 7 .34 3% 84 .87 .83 1.00 1.00 Categories 4 .32 22 105 1.00 .97 1.00 1.00 17 .28 27 124 1.00 1.00 1.00 1.00 21 .70 21 21 .67 .76 .71 .71 2 .56 15 30 .87 70 .71 .86 30 Categories 5 .53 20 48 1.00 .90 1.00 1.00 11 .32 21 69 1.00 `93 3 1.00 1.00 22 .28 25 90 1.00 .97 1.00 .1.00 8 .73 14 14 .71 .86 .43 .71 40 5 .58 16 30 .87 .70 .71 .86 Categories 34 .43 9 39 .93 .80 .86 1.00 2 .43 11 47 .93 .87 .86 1.00 12 .35 18 64 1.00 .90 .86 1.00 ( Category numbers[OCRerr] have no relatio[OCRerr] from one classification to another. Evaluation of [OCRerr]Pwo Level Searching for Test Query `1Core Memory" Figure 4.12